This is a note to let you know that I've just added the patch titled
drm/irq: BUG_ON() -> WARN_ON()
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-irq-bug_on-warn_on.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7f907bf284ba7bb8d271f094b226699d3fef2142 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@xxxxxxxxx>
Date: Sat, 8 Nov 2014 10:16:19 -0500
Subject: drm/irq: BUG_ON() -> WARN_ON()
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From: Rob Clark <robdclark@xxxxxxxxx>
commit 7f907bf284ba7bb8d271f094b226699d3fef2142 upstream.
Let's make things a bit easier to debug when things go bad (potentially
under console_lock).
Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
Reviewed-by: Michel Dänzer <michel.daenzer@xxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Cc: Anand Moon <moon.linux@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_irq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1029,7 +1029,8 @@ void drm_vblank_put(struct drm_device *d
{
struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
- BUG_ON(atomic_read(&vblank->refcount) == 0);
+ if (WARN_ON(atomic_read(&vblank->refcount) == 0))
+ return;
if (WARN_ON(crtc >= dev->num_crtcs))
return;
Patches currently in stable-queue which might be from robdclark@xxxxxxxxx are
queue-3.18/drm-vmwgfx-fix-fence-event-code.patch
queue-3.18/drm-irq-bug_on-warn_on.patch
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