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(parent: 9b02864) | 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)
commite2c7d8877e5caa2356b5bc8207535e83b126f653
tree09de6c100ca6990b8fafbf0fe21ad1fa602a15b8tree | snapshot (tar.gz zip)
parent9b028649b9d0ae72090904629dad06b022f4ddc7commit | diff
HID: wacom: check for wacom->shared before following the pointer

486b908 (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 | blame | history