If disconnect() races with release() after a process has been interrupted, release() could end up returning early and the driver would fail to free its driver data.
Fixes: 2824bd250f0b ("[PATCH] USB: add ldusb driver") Cc: stable stable@vger.kernel.org # 2.6.13 Signed-off-by: Johan Hovold johan@kernel.org --- drivers/usb/misc/ldusb.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index f3108d85e768..147c90c2a4e5 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -380,10 +380,7 @@ static int ld_usb_release(struct inode *inode, struct file *file) goto exit; }
- if (mutex_lock_interruptible(&dev->mutex)) { - retval = -ERESTARTSYS; - goto exit; - } + mutex_lock(&dev->mutex);
if (dev->open_count != 1) { retval = -ENODEV;