HID: debug: fix error handling in hid_debug_events_read()
authorJiri Kosina <jkosina@suse.cz>
Thu, 9 Apr 2015 11:32:35 +0000 (13:32 +0200)
committerJiri Kosina <jkosina@suse.cz>
Fri, 10 Apr 2015 15:32:21 +0000 (17:32 +0200)
commit8fec02a73e31407e14986fca67dab48d4f777f0e
tree8cae498d507f63e429c7e528f6332f6f998b3a47
parentc627589282213bbef12a482c0b87f23526ceb3f0
HID: debug: fix error handling in hid_debug_events_read()

In the unlikely case of hdev vanishing while hid_debug_events_read() was
sleeping, we can't really break out of the case switch as with other cases,
as on the way out we'll try to remove ourselves from the hdev waitqueue.

Fix this by taking a shortcut exit path and avoiding cleanup that doesn't
make sense in case hdev doesn't exist any more anyway.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-debug.c