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Commit 8a8dae26 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Replace nondescript 'WARN_ON(!lret)' with a sensible error message 



When a vblank wait times out in intel_atomic_wait_for_vblanks() we just
get a cryptic 'WARN_ON(!ret)' backtrace in dmesg. Repace it with
something that tells you what actually happened.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1460978973-24945-1-git-send-email-ville.syrjala@linux.intel.com


Reviewed-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
parent acf4e84d

drivers/gpu/drm/i915/intel_display.c

+1 −1
Original line number Diff line number Diff line
@@ -13526,7 +13526,7 @@ static void intel_atomic_wait_for_vblanks(struct drm_device *dev, 
					drm_crtc_vblank_count(crtc),

				msecs_to_jiffies(50));



		WARN_ON(!lret);

		WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe));



		drm_crtc_vblank_put(crtc);

	}