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authorDave Airlie <airlied@redhat.com>2010-09-27 10:17:17 +0400
committerDave Airlie <airlied@redhat.com>2010-10-01 03:17:44 +0400
commit29d08b3efddca628b0360411ab2b85f7b1723f48 (patch)
treef89a8a3069ebe9828b8a08c4b123f52625bf0bc7 /drivers/gpu/drm/radeon/radeon_gem.c
parent130b9851933e6da636502cd85e1ba8f45f862e8c (diff)
downloadlinux-29d08b3efddca628b0360411ab2b85f7b1723f48.tar.xz
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_gem.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_gem.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index c578f265b24c..d1e595d91723 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -201,11 +201,11 @@ int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
return r;
}
r = drm_gem_handle_create(filp, gobj, &handle);
+ /* drop reference from allocate - handle holds it now */
+ drm_gem_object_unreference_unlocked(gobj);
if (r) {
- drm_gem_object_unreference_unlocked(gobj);
return r;
}
- drm_gem_object_handle_unreference_unlocked(gobj);
args->handle = handle;
return 0;
}