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| author | Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> | 2018-02-22 08:09:19 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2018-02-22 17:11:46 +0100 |
| commit | 4751cf733a1170876dd5ac46f225f5a25f59a67f (patch) | |
| tree | becf80850d1043683ad7cd1a603f8fe82f4f8dbf /arch/blackfin | |
| parent | 35152d1159dbb0277b18ae664dfb5b11c27fdefa (diff) | |
drm/simple_kms_helper: Fix NULL pointer dereference with no active CRTC
It is possible that drm_simple_kms_plane_atomic_check called
with no CRTC set, e.g. when user-space application sets CRTC_ID/FB_ID
to 0 before doing any actual drawing. This leads to NULL pointer
dereference because in this case new CRTC state is NULL and must be
checked before accessing.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1519279759-7803-1-git-send-email-andr2000@gmail.com
Diffstat (limited to 'arch/blackfin')
0 files changed, 0 insertions, 0 deletions