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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2015-07-13 16:30:14 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-07-14 14:00:32 +0200
commit8a75d157ccddc2c1fb5aeefe6a1a45a9eb0c0176 (patch)
tree71d9d8a2c0acc4986bfde94b3faef1d4b910825a
parentdrm/i915/skl: Restrict the ring frequency table programming to SKL (diff)
downloadlinux-dev-8a75d157ccddc2c1fb5aeefe6a1a45a9eb0c0176.tar.xz
linux-dev-8a75d157ccddc2c1fb5aeefe6a1a45a9eb0c0176.zip
drm/i915: Only update state on crtc's that are part of the atomic state.
This is probably hard to hit right now because in most cases all atomic locks are taken, but after conversion to atomic this will make it more likely to corrupt the crtc->config pointer, resulting in hard to find bugs. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/intel_display.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 00c60c1c5162..9995df578fa8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12312,6 +12312,7 @@ intel_modeset_update_state(struct drm_atomic_state *state)
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
struct drm_connector *connector;
+ int i;
intel_shared_dpll_commit(state);
@@ -12331,7 +12332,7 @@ intel_modeset_update_state(struct drm_atomic_state *state)
intel_modeset_update_staged_output_state(state->dev);
/* Double check state. */
- for_each_crtc(dev, crtc) {
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
WARN_ON(crtc->state->enable != intel_crtc_in_use(crtc));
to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state);