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2023-01-13fbdev/simplefb: Do not use struct fb_info.aperturesThomas Zimmermann1-8/+11
Acquire ownership of the firmware scanout buffer by calling Linux' aperture helpers. Remove the use of struct fb_info.apertures and do not set FBINFO_MISC_FIRMWARE; both of which previously configured buffer ownership. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/offb: Do not use struct fb_info.aperturesThomas Zimmermann1-9/+11
Acquire ownership of the firmware scanout buffer by calling Linux' aperture helpers. Remove the use of struct fb_info.apertures and do not set FBINFO_MISC_FIRMWARE; both of which previously configured buffer ownership. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/offb: Allocate struct offb_par with framebuffer_alloc()Thomas Zimmermann1-8/+5
Move the palette array into struct offb_par and allocate both via framebuffer_alloc(), as intended by fbdev. No functional changes. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/efifb: Do not use struct fb_info.aperturesThomas Zimmermann1-10/+14
Acquire ownership of the firmware scanout buffer by calling Linux' aperture helpers. Remove the use of struct fb_info.apertures and do not set FBINFO_MISC_FIRMWARE; both of which previously configured buffer ownership. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/efifb: Add struct efifb_par for driver dataThomas Zimmermann1-3/+8
The efifb_par structure holds the palette for efifb. It will also be useful for storing the device's aperture range. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/hyperv-fb: Do not set struct fb_info.aperturesThomas Zimmermann1-11/+6
Generic fbdev drivers use the apertures field in struct fb_info to control ownership of the framebuffer memory and graphics device. Do not set the values in hyperv-fb. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Reviewed-by: Michael Kelley <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbdev/clps711x-fb: Do not set struct fb_info.aperturesThomas Zimmermann1-9/+1
Generic fbdev drivers use the apertures field in struct fb_info to control ownership of the framebuffer memory and graphics device. Do not set the values in clps711x-fb. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13Revert "fbcon: don't lose the console font across generic->chip driver switch"Thomas Zimmermann1-11/+6
This reverts commit ae1287865f5361fa138d4d3b1b6277908b54eac9. Always free the console font when deinitializing the framebuffer console. Subsequent framebuffer consoles will then use the default font. Rely on userspace to load any user-configured font for these consoles. Commit ae1287865f53 ("fbcon: don't lose the console font across generic->chip driver switch") was introduced to work around losing the font during graphics-device handover. [1][2] It kept a dangling pointer with the font data between loading the two consoles, which is fairly adventurous hack. It also never covered cases when the other consoles, such as VGA text mode, where involved. The problem has meanwhile been solved in userspace. Systemd comes with a udev rule that re-installs the configured font when a console comes up. [3] So the kernel workaround can be removed. This also removes one of the two special cases triggered by setting FBINFO_MISC_FIRMWARE in an fbdev driver. Tested during device handover from efifb and simpledrm to radeon. Udev reloads the configured console font for the new driver's terminal. Signed-off-by: Thomas Zimmermann <[email protected]> Link: https://bugzilla.redhat.com/show_bug.cgi?id=892340 # 1 Link: https://bugzilla.redhat.com/show_bug.cgi?id=1074624 # 2 Link: https://cgit.freedesktop.org/systemd/systemd/tree/src/vconsole/90-vconsole.rules.in?h=v222 # 3 Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-13fbcon: Remove trailing whitespacesThomas Zimmermann1-12/+12
Fix coding style. No functional changes. Signed-off-by: Thomas Zimmermann <[email protected]> Reviewed-by: Javier Martinez Canillas <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-01-12Merge tag 'for-linus-6.2-rc4-tag' of ↵Linus Torvalds1-4/+2
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - two cleanup patches - a fix of a memory leak in the Xen pvfront driver - a fix of a locking issue in the Xen hypervisor console driver * tag 'for-linus-6.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/pvcalls: free active map buffer on pvcalls_front_free_map hvc/xen: lock console list traversal x86/xen: Remove the unused function p2m_index() xen: make remove callback of xen driver void returned
2023-01-12ARM: sa1100: remove unused board filesArnd Bergmann1-1/+0
The Cerf, H3100, Badge4, Hackkit, LART, NanoEngine, PLEB, Shannon and Simpad machines were all marked as unused as there are no known users left. Remove all of these, along with references to them in defconfig files and drivers. Four machines remain now: Assabet, Collie (Zaurus SL5500), iPAQ H3600 and Jornada 720, each of which had one person still using them, with Collie also being supported in Qemu. Cc: Peter Chubb <[email protected]> Cc: Stefan Eletzhofer <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Viresh Kumar <[email protected]> Acked-by: Lee Jones <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-01-12fbdev: omapfb: remove unused board supportArnd Bergmann8-448/+0
A number of omap1 based board files got removed, so the corresponding framebuffer drivers are no longer used. The remaining ones are for ams_delta, osk and palmTE, which are still part of the mainline kernel. Cc: Aaro Koskinen <[email protected]> Cc: Janusz Krzysztofik <[email protected]> Cc: [email protected] Cc: Marek Vasut <[email protected]> Cc: Angelo Arrifano <[email protected]> Cc: Imre Deak <[email protected]> Acked-by: Tony Lindgren <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-01-12ARM: omap1: remove dead codeArnd Bergmann1-2/+0
After the removal of the unused board files, I went through the omap1 code to look for code that no longer has any callers and remove that. In particular, support for the omap7xx/omap8xx family is now completely unused, so I'm only leaving omap15xx/omap16xx/omap59xx. Cc: Aaro Koskinen <[email protected]> Cc: Janusz Krzysztofik <[email protected]> Cc: [email protected] Reviewed-by: Greg Kroah-Hartman <[email protected]> Acked-by: Tony Lindgren <[email protected]> Acked-by: Kevin Hilman <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-01-09fbdev: atmel_lcdfb: Rework backlight status updatesStephen Kitt1-21/+1
Instead of checking the state of various backlight_properties fields against the memorised state in atmel_lcdfb_info.bl_power, atmel_bl_update_status() should retrieve the desired state using backlight_get_brightness (which takes into account the power state, blanking etc.). This means the explicit checks using props.fb_blank and props.power can be dropped. The backlight framework ensures that backlight is never negative, so the test before reading the brightness from the hardware always ends up false and the whole block can be removed. The framework retrieves the brightness from the hardware through atmel_bl_get_brightness() when necessary. As a result, bl_power in struct atmel_lcdfb_info is no longer necessary, so remove that while we're at it. Since we only ever care about reading the current state in backlight_properties, drop the updates at the end of the function. Signed-off-by: Stephen Kitt <[email protected]> Acked-by: Sam Ravnborg <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: riva: Use backlight helperStephen Kitt1-7/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Antonino Daplas <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: omapfb: panel-dsi-cm: Use backlight helperStephen Kitt1-7/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: nvidia: Use backlight helperStephen Kitt1-7/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Antonino Daplas <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: mx3fb: Use backlight helperStephen Kitt1-6/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: radeon: Use backlight helperStephen Kitt1-5/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: atyfb: Use backlight helperStephen Kitt1-7/+1
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-09fbdev: aty128fb: Use backlight helperStephen Kitt1-4/+2
Instead of retrieving the backlight brightness in struct backlight_properties manually, and then checking whether the backlight should be on at all, use backlight_get_brightness() which does all this and insulates this from future changes. Signed-off-by: Stephen Kitt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Reviewed-by: Sam Ravnborg <[email protected]> Reviewed-by: Daniel Thompson <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-05fbdev: omapfb: avoid stack overflow warningArnd Bergmann1-10/+18
The dsi_irq_stats structure is a little too big to fit on the stack of a 32-bit task, depending on the specific gcc options: fbdev/omap2/omapfb/dss/dsi.c: In function 'dsi_dump_dsidev_irqs': fbdev/omap2/omapfb/dss/dsi.c:1621:1: error: the frame size of 1064 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] Since this is only a debugfs file, performance is not critical, so just dynamically allocate it, and print an error message in there in place of a failure code when the allocation fails. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2023-01-02fbdev: matroxfb: G200eW: Increase max memory from 1 MB to 16 MBPaul Menzel1-2/+2
Commit 62d89a7d49af ("video: fbdev: matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen") accidently decreases the maximum memory size for the Matrox G200eW (102b:0532) from 8 MB to 1 MB by missing one zero. This caused the driver initialization to fail with the messages below, as the minimum required VRAM size is 2 MB: [ 9.436420] matroxfb: Matrox MGA-G200eW (PCI) detected [ 9.444502] matroxfb: cannot determine memory size [ 9.449316] matroxfb: probe of 0000:0a:03.0 failed with error -1 So, add the missing 0 to make it the intended 16 MB. Successfully tested on the Dell PowerEdge R910/0KYD3D, BIOS 2.10.0 08/29/2013, that the warning is gone. While at it, add a leading 0 to the maxdisplayable entry, so it’s aligned properly. The value could probably also be increased from 8 MB to 16 MB, as the G200 uses the same values, but I have not checked any datasheet. Note, matroxfb is obsolete and superseded by the maintained DRM driver mga200, which is used by default on most systems where both drivers are available. Therefore, on most systems it was only a cosmetic issue. Fixes: 62d89a7d49af ("video: fbdev: matroxfb: set maxvram of vbG200eW to the same as vbG200 to avoid black screen") Link: https://lore.kernel.org/linux-fbdev/[email protected]/T/#mb6953a9995ebd18acc8552f99d6db39787aec775 Cc: [email protected] Cc: Z. Liu <[email protected]> Cc: Rich Felker <[email protected]> Cc: [email protected] Signed-off-by: Paul Menzel <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-28fbdev: atyfb: use strscpy() to instead of strncpy()Xu Panda1-2/+1
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings. Signed-off-by: Xu Panda <[email protected]> Signed-off-by: Yang Yang <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-28fbdev: omapfb: use strscpy() to instead of strncpy()Xu Panda1-3/+2
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings. Signed-off-by: Xu Panda <[email protected]> Signed-off-by: Yang Yang <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-27fbdev: make offb driver tristateRandy Dunlap1-2/+2
Make the offb (Open Firmware frame buffer) driver tristate, i.e., so that it can be built as a loadable module. However, it still depends on the setting of DRM_OFDRM so that both of these drivers cannot be builtin at the same time nor can one be builtin and the other one a loadable module. Build-tested successfully with all combination of DRM_OFDRM and FB_OF. This fixes a build issue that Michal reported when FB_OF=y and DRM_OFDRM=m: powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x58): undefined reference to `cfb_fillrect' powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x60): undefined reference to `cfb_copyarea' powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x68): undefined reference to `cfb_imageblit' Signed-off-by: Randy Dunlap <[email protected]> Suggested-by: Arnd Bergmann <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Thomas Zimmermann <[email protected]> Cc: Michal Suchánek <[email protected]> Cc: [email protected] Cc: Daniel Vetter <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Acked-by: Thomas Zimmermann <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-15xen: make remove callback of xen driver void returnedDawei Li1-4/+2
Since commit fc7a6209d571 ("bus: Make remove callback return void") forces bus_type::remove be void-returned, it doesn't make much sense for any bus based driver implementing remove callbalk to return non-void to its caller. This change is for xen bus based drivers. Acked-by: Juergen Gross <[email protected]> Signed-off-by: Dawei Li <[email protected]> Link: https://lore.kernel.org/r/TYCP286MB23238119AB4DF190997075C9CAE39@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM Signed-off-by: Juergen Gross <[email protected]>
2022-12-14fbdev: fbcon: release buffer when fbcon_do_set_font() failedTetsuo Handa1-1/+2
syzbot is reporting memory leak at fbcon_do_set_font() [1], for commit a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") missed that the buffer might be newly allocated by fbcon_set_font(). Link: https://syzkaller.appspot.com/bug?extid=25bdb7b1703639abd498 [1] Reported-by: syzbot <[email protected]> Signed-off-by: Tetsuo Handa <[email protected]> Tested-by: syzbot <[email protected]> Fixes: a5a923038d70 ("fbdev: fbcon: Properly revert changes when vc_resize() failed") CC: [email protected] # 5.15+ Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: sh_mobile_lcdcfb: use sysfs_emit() to instead of scnprintf()ye xingchen1-4/+4
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: uvesafb: use sysfs_emit() to instead of scnprintf()ye xingchen1-5/+5
Follow the advice of the Documentation/filesystems/sysfs.rst and show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: ye xingchen <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: uvesafb: Simplify uvesafb_remove()Christophe JAILLET1-15/+13
When the remove() function is called, we know that the probe() function has successfully been executed. So 'info' is known to be not NULL. Simplify the code accordingly. Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: uvesafb: Fixes an error handling path in uvesafb_probe()Christophe JAILLET1-0/+1
If an error occurs after a successful uvesafb_init_mtrr() call, it must be undone by a corresponding arch_phys_wc_del() call, as already done in the remove function. This has been added in the remove function in commit 63e28a7a5ffc ("uvesafb: Clean up MTRR code") Fixes: 8bdb3a2d7df4 ("uvesafb: the driver core") Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: uvesafb: don't build on UMLRandy Dunlap1-0/+1
The uvesafb fbdev driver uses memory management information that is not available on ARCH=um, so don't allow this driver to be built on UML. Prevents these build errors: ../drivers/video/fbdev/uvesafb.c: In function ‘uvesafb_vbe_init’: ../drivers/video/fbdev/uvesafb.c:807:21: error: ‘__supported_pte_mask’ undeclared (first use in this function) 807 | if (__supported_pte_mask & _PAGE_NX) { ../drivers/video/fbdev/uvesafb.c:807:44: error: ‘_PAGE_NX’ undeclared (first use in this function) 807 | if (__supported_pte_mask & _PAGE_NX) { Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap <[email protected]> Cc: Johannes Berg <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: [email protected] Cc: Daniel Vetter <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Michal Januszewski <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: geode: don't build on UMLRandy Dunlap1-0/+1
The geode fbdev driver uses struct cpuinfo fields that are not present on ARCH=um, so don't allow this driver to be built on UML. Prevents these build errors: In file included from ../arch/x86/include/asm/olpc.h:7:0, from ../drivers/mfd/cs5535-mfd.c:17: ../arch/x86/include/asm/geode.h: In function ‘is_geode_gx’: ../arch/x86/include/asm/geode.h:16:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:16:39: error: ‘X86_VENDOR_NSC’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) && ../arch/x86/include/asm/geode.h:17:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’ (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:18:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ (boot_cpu_data.x86_model == 5)); ../arch/x86/include/asm/geode.h: In function ‘is_geode_lx’: ../arch/x86/include/asm/geode.h:23:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’ return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:23:39: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’? return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && ../arch/x86/include/asm/geode.h:24:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’ (boot_cpu_data.x86 == 5) && ../arch/x86/include/asm/geode.h:25:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’ (boot_cpu_data.x86_model == 10)); Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver") Signed-off-by: Randy Dunlap <[email protected]> Cc: Johannes Berg <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: [email protected] Cc: Daniel Vetter <[email protected]> Cc: Helge Deller <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Andres Salomon <[email protected]> Cc: [email protected] Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: ep93xx-fb: Add missing clk_disable_unprepare in ep93xxfb_probe()Gaosheng Cui1-1/+3
The clk_disable_unprepare() should be called in the error handling of register_framebuffer(), fix it. Fixes: 0937a7b3625d ("video: ep93xx: Prepare clock before using it") Signed-off-by: Gaosheng Cui <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: matroxfb: Convert to i2c's .probe_new()Uwe Kleine-König1-3/+2
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: da8xx-fb: add missing regulator_disable() in fb_probeDongliang Mu1-2/+5
The error handling code in fb_probe misses regulator_disable if regulator_enable is called successfully. The previous commit only adds regulator_disable in the .remove(), forgetting the error handling code in the .probe. Fix this by adding a new error label to call regulator_disable. Fixes: 611097d5daea("fbdev: da8xx: add support for a regulator") Signed-off-by: Dongliang Mu <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: controlfb: fix spelling mistake "paramaters"->"parameters"Yu Zhe1-1/+1
There is a spelling mistake in comment. Fix it. Signed-off-by: Yu Zhe <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: vermilion: decrease reference count in error pathXiongfeng Wang1-1/+3
pci_get_device() will increase the reference count for the returned pci_dev. For the error path, we need to use pci_dev_put() to decrease the reference count. Fixes: dbe7e429fedb ("vmlfb: framebuffer driver for Intel Vermilion Range") Signed-off-by: Xiongfeng Wang <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: smscufx: fix error handling code in ufx_usb_probeDongliang Mu1-15/+31
The current error handling code in ufx_usb_probe have many unmatching issues, e.g., missing ufx_free_usb_list, destroy_modedb label should only include framebuffer_release, fb_dealloc_cmap only matches fb_alloc_cmap. My local syzkaller reports a memory leak bug: memory leak in ufx_usb_probe BUG: memory leak unreferenced object 0xffff88802f879580 (size 128): comm "kworker/0:7", pid 17416, jiffies 4295067474 (age 46.710s) hex dump (first 32 bytes): 80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff .!|............. 00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00 ................ backtrace: [<ffffffff814c99a0>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045 [<ffffffff824d219c>] kmalloc include/linux/slab.h:553 [inline] [<ffffffff824d219c>] kzalloc include/linux/slab.h:689 [inline] [<ffffffff824d219c>] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline] [<ffffffff824d219c>] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655 [<ffffffff82d17927>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline] [<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639 [<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 [<ffffffff827132da>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808 [<ffffffff82713c27>] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936 [<ffffffff82710137>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427 [<ffffffff827136b5>] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008 [<ffffffff82711d36>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487 [<ffffffff8270e242>] device_add+0x642/0xdc0 drivers/base/core.c:3517 [<ffffffff82d14d5f>] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170 [<ffffffff82d2576c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<ffffffff82d16ffc>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline] [<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639 [<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 Fix this bug by rewriting the error handling code in ufx_usb_probe. Reported-by: syzkaller <[email protected]> Tested-by: Dongliang Mu <[email protected]> Signed-off-by: Dongliang Mu <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: via: Fix error in via_core_init()Shang XiaoJing1-1/+8
via_core_init() won't exit the driver when pci_register_driver() failed. Exit the viafb-i2c and the viafb-gpio in failed path to prevent error. VIA Graphics Integration Chipset framebuffer 2.4 initializing Error: Driver 'viafb-i2c' is already registered, aborting... Error: Driver 'viafb-gpio' is already registered, aborting... Fixes: 7582eb9be85f ("viafb: Turn GPIO and i2c into proper platform devices") Signed-off-by: Shang XiaoJing <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: pm2fb: fix missing pci_disable_device()Yang Yingliang1-2/+7
Add missing pci_disable_device() in error path of probe() and remove() path. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Yang Yingliang <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: pxafb: Remove unnecessary print function dev_err()[email protected]1-1/+0
Eliminate the follow coccicheck warning: ./drivers/video/fbdev/pxafb.c:2330:2-9: line 2330 is redundant because platform_get_irq() already prints an error Signed-off-by: KaiLong Wang <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: panel-sharp-ls037v7dw01: fix included headersDmitry Torokhov1-2/+1
The driver is using gpiod API so it should include gpio/consumer.h and not gpio.gh or of_gpio.h. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: panel-tpo-td028ttec1: stop including gpio.hDmitry Torokhov1-1/+0
The driver does not use gpios, so there is no need to include gpio.h. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: panel-lgphilips-lb035q02: remove backlight GPIO handlingDmitry Torokhov1-20/+1
With f048e8c1d169 ("omapfb: panel-lgphilips-lb035q02: Remove legacy boot support") it is no longer possible to specify GPIO to control the backlight. Remove code trying to request and toggle it. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: encoder-opa362: fix included headersDmitry Torokhov1-2/+2
The driver has been switched to gpiod API, so it should include gpio/consumer.h instead of gpio.h and of_gpio.h. With of_gpio.h no longer included we need mod_devicetable.h for of_device_id definition. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: connector-analog-tv: remove support for platform dataDmitry Torokhov1-52/+8
There are no users of connector_atv_platform_data in the mainline kernel so support for it can be removed from the panel driver. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: panel-dpi: remove support for platform dataDmitry Torokhov1-76/+7
There are no users of panel_dpi_platform_data in the mainline kernel so support for it can be removed from the panel driver. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-12-14fbdev: omapfb: panel-nec-nl8048hl11: switch to using gpiod APIDmitry Torokhov1-52/+20
Switch the driver from legacy gpio API that is deprecated to the newer gpiod API that respects line polarities described in ACPI/DT. Note that because existing DTSes specify incorrect polarity of reset lines (active high) and GPU drivers have adopted to this, we follow the suit and use inverted values when controlling reset lines. Signed-off-by: Dmitry Torokhov <[email protected]> Signed-off-by: Helge Deller <[email protected]>