For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with
commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date: Thu Oct 15 09:36:25 2015 +0200
drm/gem: Check locking in drm_gem_object_unreference
Cc: Tomi Valkeinen <tomi.valkeinen at ti.com>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
drivers/gpu/drm/omapdrm/omap_fbdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c
b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 3cb16f0cf381..89da41ac64d2 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -153,7 +153,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
/* note: if fb creation failed, we can't rely on fb destroy
* to unref the bo:
*/
- drm_gem_object_unreference(fbdev->bo);
+ drm_gem_object_unreference_unlocked(fbdev->bo);
ret = PTR_ERR(fb);
goto fail;
}
--
2.8.0.rc3
