4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rob Clark <robdclark@xxxxxxxxxxxx>
[ Upstream commit b6802b61a9d0e99dcfa6fff7c50db7c48a9623d3 ]
DRM_MODESET_LOCK_ALL_BEGIN() has a hidden trap-door (aka retry loop),
which means we can't rely too much on variable initializers.
Fixes: 6e455f5dcdd1 ("drm/crtc: fix uninitialized variable use")
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> # sc7180, sdm845
Link: https://patchwork.freedesktop.org/patch/msgid/20240212215534.190682-1-robdclark@xxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/drm_crtc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 82ad38ee3fea7..e8d5fc8408c59 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -768,6 +768,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
connector_set = NULL;
fb = NULL;
mode = NULL;
+ num_connectors = 0;
if (ret == -EDEADLK) {
ret = drm_modeset_backoff(&ctx);
--
2.43.0
