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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 08:12:54 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 08:12:54 -0700
commit641e22e04c48af5d813f119c55336e02a22756f5 (patch)
tree9f7f693e8dd030e1d28585893e6e53bd86b1208c /drivers/usb/core/sysfs.c
parent31f6e1bd3b58c9a67e5ea0c2d372fbf5fc9e326d (diff)
parentfa91d43b914b77637653d984416e17e182f7b807 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (29 commits) USB: Add support for Olimex arm-usb-ocd JTAG interface serial port USB: Add support for Sierra Wireless Aircard 595U USB: ldusb bugfix USB: ftdi_sio: Add USB Product Id for OpenDCC USB: fix ratelimit call semantics USB: handle errors in power/level attribute USB: make the autosuspend workqueue thread freezable USB: Fix USB OHCI Subvendor for Toshiba Portege 4000 USB: usblp: Use correct DMA address in case of probe error USB: Fix debug output of ark3116 USB: Onetouch - switch to using input_dev->dev.parent USB: don't try to kzalloc 0 bytes USB: remove short initial timeout for device descriptor fetch USB: Deref URB after usbmon is done with it USB: Remove duplicate IDs from option card driver USB: auerswald: fix file release handler USB: fsl_usb2_udc: Fix UMTI_WIDE support and a compile warning USB: set the correct Interrupt interval in usb_bulk_msg USB: New device PID for ftdi_sio driver USB: remove unneeded WARN_ON ...
Diffstat (limited to 'drivers/usb/core/sysfs.c')
-rw-r--r--drivers/usb/core/sysfs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index e7c982377488..be37c863fdfb 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -232,12 +232,15 @@ set_level(struct device *dev, struct device_attribute *attr,
int len = count;
char *cp;
int rc = 0;
+ int old_autosuspend_disabled, old_autoresume_disabled;
cp = memchr(buf, '\n', count);
if (cp)
len = cp - buf;
usb_lock_device(udev);
+ old_autosuspend_disabled = udev->autosuspend_disabled;
+ old_autoresume_disabled = udev->autoresume_disabled;
/* Setting the flags without calling usb_pm_lock is a subject to
* races, but who cares...
@@ -263,6 +266,10 @@ set_level(struct device *dev, struct device_attribute *attr,
} else
rc = -EINVAL;
+ if (rc) {
+ udev->autosuspend_disabled = old_autosuspend_disabled;
+ udev->autoresume_disabled = old_autoresume_disabled;
+ }
usb_unlock_device(udev);
return (rc < 0 ? rc : count);
}