diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-09-27 08:17:17 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-10-01 01:17:44 +0200 |
| commit | 29d08b3efddca628b0360411ab2b85f7b1723f48 (patch) | |
| tree | f89a8a3069ebe9828b8a08c4b123f52625bf0bc7 /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | drm: i810/i830: fix locked ioctl variant (diff) | |
| download | linux-29d08b3efddca628b0360411ab2b85f7b1723f48.tar.xz linux-29d08b3efddca628b0360411ab2b85f7b1723f48.zip | |
drm/gem: handlecount isn't really a kref so don't make it one.
There were lots of places being inconsistent since handle count
looked like a kref but it really wasn't.
Fix this my just making handle count an atomic on the object,
and have it increase the normal object kref.
Now i915/radeon/nouveau drivers can drop the normal reference on
userspace object creation, and have the handle hold it.
This patch fixes a memory leak or corruption on unload, because
the driver had no way of knowing if a handle had been actually
added for this object, and the fbcon object needed to know this
to clean itself up properly.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 7422f274615a..b92d2f2fcbed 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -843,8 +843,9 @@ static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb) { struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb); - if (radeon_fb->obj) + if (radeon_fb->obj) { drm_gem_object_unreference_unlocked(radeon_fb->obj); + } drm_framebuffer_cleanup(fb); kfree(radeon_fb); } |