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(parent: 40aa736) | patch
HID: wacom: check for wacom->shared before following the pointer
authorBenjamin Tissoires <benjamin.tissoires@redhat.com>
Thu, 5 Mar 2015 22:36:35 +0000 (17:36 -0500)
committerJiri Kosina <jkosina@suse.cz>
Tue, 17 Mar 2015 19:59:55 +0000 (20:59 +0100)
commitb1401a19cc7ddfd3aba296ce0ae0205fab52e44b
tree09de6c100ca6990b8fafbf0fe21ad1fa602a15b8tree | snapshot
parent40aa736f9cb9e16d871901d38e955e65644ad69dcommit | diff
HID: wacom: check for wacom->shared before following the pointer

2dfd9bb (HID: wacom: do not send pen events before touch is up/forced out)
introduces a kernel oops when plugging a tablet without touch.

wacom->shared is null for these devices so this leads to a null pointer
exception.

Change the condition to make it clear that what we need is wacom->shared
not NULL.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/wacom_wac.c diff | blob | history
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