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evdev: Release eventual input device grabs when getting disconnected

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When getting disconnected we need to release eventual grabs on the
underlying input device as we also release the input device itself.
Otherwise, we would try to release the grab when the client that
requested it closes its handle, accessing the input device which
might already be freed.

Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Björn Steinbrink 2008-03-30 20:42:59 +02:00 committed by Linus Torvalds
parent d6e4218e28
commit eb08b6b973
1 changed files with 3 additions and 0 deletions
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3
drivers/input/evdev.c
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@ -853,6 +853,9 @@ static void evdev_cleanup(struct evdev *evdev)
evdev_hangup(evdev);
evdev_remove_chrdev(evdev);
if (evdev->grab)
evdev_ungrab(evdev, evdev->grab);
/* evdev is marked dead so no one else accesses evdev->open */
if (evdev->open) {
input_flush_device(handle, NULL);