We want to lock the primary plane, not the cursor (which might be
optional). Real bad case of copy-paste fail, unfortunately our CI
didn't catch that because i915 does have a cursor plane.
Cc: Eric Anholt <eric@xxxxxxxxxx>
Reported-by: Eric Anholt <eric@xxxxxxxxxx>
Fixes: 29dc0d1de182 ("drm: Roll out acquire context for the page_flip ioctl")
Cc: Harry Wentland <harry.wentland@xxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/drm_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 3a6de27bafed..838ca742a28b 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -871,7 +871,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
ret = drm_modeset_lock(&crtc->mutex, &ctx);
if (ret)
goto out;
- ret = drm_modeset_lock(&crtc->cursor->mutex, &ctx);
+ ret = drm_modeset_lock(&crtc->primary->mutex, &ctx);
if (ret)
goto out;
--
2.11.0
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