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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-08-15 00:02:36 +0200 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-21 19:13:42 +0900 |
| commit | ad88c30ff4a1eb62f23dd5b5ff99f3ac576ae20e (patch) | |
| tree | 7d9fc49c754cf987917c6461fb42a64511465f3f /drivers/gpu | |
| parent | 50f6fafe2ae9f0b56e848f72a333d13bc1a21f11 (diff) | |
| download | linux-3.10-ad88c30ff4a1eb62f23dd5b5ff99f3ac576ae20e.tar.gz linux-3.10-ad88c30ff4a1eb62f23dd5b5ff99f3ac576ae20e.tar.bz2 linux-3.10-ad88c30ff4a1eb62f23dd5b5ff99f3ac576ae20e.zip | |
drm/gem: WARN about unbalanced handle refcounts
Trying to drop a reference we don't have is a pretty serious bug.
Trying to paper over it is an even worse offense.
So scream into dmesg with a big WARN in case that ever happens.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 21a6cbce8e0..1c87f7e0664 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -301,7 +301,7 @@ static void drm_gem_object_handle_free(struct drm_gem_object *obj) void drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) { - if (atomic_read(&obj->handle_count) == 0) + if (WARN_ON(atomic_read(&obj->handle_count) == 0)) return; /* |