5.4-stable review patch. If anyone has any objections, please let me know.
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From: Rob Clark robdclark@chromium.org
[ 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@chromium.org Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Tested-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org # sc7180, sdm845 Link: https://patchwork.freedesktop.org/patch/msgid/20240212215534.190682-1-robdcl... Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 85d85a0ba85f9..da45cfd2939cf 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -727,6 +727,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, connector_set = NULL; fb = NULL; mode = NULL; + num_connectors = 0;
DRM_MODESET_LOCK_ALL_END(ctx, ret); mutex_unlock(&crtc->dev->mode_config.mutex);