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authorMarcin Slusarz <marcin.slusarz@gmail.com>2011-08-22 21:17:57 +0000
committerDave Airlie <airlied@redhat.com>2011-08-23 09:34:18 +0100
commit7c4c3960dff109bc5db4c35da481c212dadb5eb5 (patch)
tree30e6dcabe064a1c893fb2721224b7eefffa90419
parentba95c45a78d57ac05bf45d81b92a6ec4d299695d (diff)
drm/ttm: fix ttm_bo_add_ttm(user) failure path
ttm_tt_destroy kfrees passed object, so we need to nullify a reference to it. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: stable@kernel.org Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 56619f64b6bf..384116afe5b7 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -353,8 +353,10 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
ret = ttm_tt_set_user(bo->ttm, current,
bo->buffer_start, bo->num_pages);
- if (unlikely(ret != 0))
+ if (unlikely(ret != 0)) {
ttm_tt_destroy(bo->ttm);
+ bo->ttm = NULL;
+ }
break;
default:
printk(KERN_ERR TTM_PFX "Illegal buffer object type\n");