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HID: uhid: Fix sending events with invalid data 

This was detected because events with invalid types were arriving
to userspace.

The code before this patch would only work for the first event in the
queue (when uhid->tail is 0).

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Reviewed-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Vinicius Costa Gomes 2012-07-14 18:59:25 -03:00 committed by Jiri Kosina
parent 1a8b294ce6
commit adefb69b1b
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/uhid.c
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@ -465,7 +465,7 @@ try_again:
goto try_again;
} else {
len = min(count, sizeof(**uhid->outq));
if (copy_to_user(buffer, &uhid->outq[uhid->tail], len)) {
if (copy_to_user(buffer, uhid->outq[uhid->tail], len)) {
ret = -EFAULT;
} else {
kfree(uhid->outq[uhid->tail]);