Commit c66f8543 authored Jan 24, 2014 by Thomas Hellstrom

drm/ttm: Fix TTM object open regression



Commit drm/ttm: ttm object security fixes for render nodes introduced a
regression where, if a TTM object was opened multiple times from the same
open file, the caller would spin uninterruptibly in the kernel.

Fix this.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

parent 76f4f415

drivers/gpu/drm/ttm/ttm_object.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -292,7 +292,7 @@ int ttm_ref_object_add(struct ttm_object_file *tfile,

		if (ret == 0) {
		ref = drm_hash_entry(hash, struct ttm_ref_object, hash);
		if (!kref_get_unless_zero(&ref->kref)) {
		if (kref_get_unless_zero(&ref->kref)) {
		rcu_read_unlock();
		break;
		}