3.0-stable review patch. If anyone has any objections, please let us know.
------------------
From: Marcin Slusarz <marcin.slus...@gmail.com>
commit 7c4c3960dff109bc5db4c35da481c212dadb5eb5 upstream.
ttm_tt_destroy kfrees passed object, so we need to nullify
a reference to it.
Signed-off-by: Marcin Slusarz <marcin.slus...@gmail.com>
Reviewed-by: Thomas Hellstrom <thellst...@vmware.com>
Signed-off-by: Dave Airlie <airl...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
drivers/gpu/drm/ttm/ttm_bo.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- 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_buf
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");
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