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[0853/1094] drm/i915: More cargo-culted locking for intel_update_fbc

Message ID 1413889294-31328-854-git-send-email-dheerajx.s.jamwal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dheeraj Jamwal Oct. 21, 2014, 10:57 a.m. UTC 
From: Daniel Vetter <daniel.vetter@ffwll.ch>

Just for consistency, this patch won't fix anything really.

v2: Rebase over all the recent plane enabling shuffling.

Reviewed-by: Akash Goel <akash.goel@intel.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit efa9624e2a5c42c9eab4fa9e64e5e5f61f3f1866)

Signed-off-by: Dheeraj Jamwal <dheerajx.s.jamwal@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c |    2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 91fb3f3..acbf97a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4616,7 +4616,9 @@  static void i9xx_crtc_disable(struct drm_crtc *crtc)
 	intel_crtc->active = false;
 	intel_update_watermarks(crtc);
 
+	mutex_lock(&dev->struct_mutex);
 	intel_update_fbc(dev);
+	mutex_unlock(&dev->struct_mutex);
 }
 
 static void i9xx_crtc_off(struct drm_crtc *crtc)