diff options
| author | Thomas Zimmermann <[email protected]> | 2023-04-28 14:24:50 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <[email protected]> | 2023-05-08 15:28:34 +0200 |
| commit | 3f8974f68f408f4983443b745a3cf95b06112469 (patch) | |
| tree | 7bf2c45c6d071b3d865efaa6135cb5d70e24069d /drivers/fpga/xilinx-spi.c | |
| parent | 453bd91302f16ddb8a2f5eb3df9fda3206dbacef (diff) | |
fbdev: Validate info->screen_{base, buffer} in fb_ops implementations
Push the test for info->screen_base from fb_read() and fb_write() into
the implementations of struct fb_ops.{fb_read,fb_write}. In cases where
the driver operates on info->screen_buffer, test this field instead.
While bothi fields, screen_base and screen_buffer, are stored in the
same location, they refer to different address spaces. For correctness,
we want to test each field in exactly the code that uses it.
v2:
* also test screen_base in pvr2fb (Geert)
* also test screen_buffer in ivtvfb, arcfb, broadsheetfb,
hecubafb, metronomefb and ssd1307fb (Geert)
* give a rational for the change (Geert)
Signed-off-by: Thomas Zimmermann <[email protected]>
Tested-by: Sui Jingfeng <[email protected]>
Reviewed-by: Javier Martinez Canillas <[email protected]>
Acked-by: Helge Deller <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/fpga/xilinx-spi.c')
0 files changed, 0 insertions, 0 deletions