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| author | Marcin Slusarz <marcin.slusarz@gmail.com> | 2011-08-22 21:17:57 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-29 14:08:08 -0700 |
| commit | 035fac5844e2cbc3bb485b6d274b4266c27aeeb2 (patch) | |
| tree | b6876b6b7c73ae7e54d43bfa96395e814b706413 | |
| parent | 4d3b4b41f4e2dbd884ea275a40d784a4fdd780fc (diff) | |
| download | lwn-035fac5844e2cbc3bb485b6d274b4266c27aeeb2.tar.gz lwn-035fac5844e2cbc3bb485b6d274b4266c27aeeb2.zip | |
drm/ttm: fix ttm_bo_add_ttm(user) failure path
commit 7c4c3960dff109bc5db4c35da481c212dadb5eb5 upstream.
ttm_tt_destroy kfrees passed object, so we need to nullify
a reference to it.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 4 |
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 87c06252d464..0ed436e3905e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -281,8 +281,10 @@ 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"); |