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panfrost: Fix BO reference counting

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Fixes: 3283c7f4da ("panfrost: Inline reference counting routines")
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4792>
This commit is contained in:
Alyssa Rosenzweig
2020-04-28 15:28:11 -04:00
committed by Marge Bot
parent 22a4cb4937
commit e3062edff4
1 changed files with 2 additions and 2 deletions
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src/panfrost/encoder/pan_bo.c
+2 -2
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@@ -482,7 +482,7 @@ panfrost_bo_import(struct panfrost_device *dev, int fd)
panfrost_bo_mmap(newbo);
} else {
ralloc_free(newbo);
/* bo->refcnt != 0 can happen if the BO
/* bo->refcnt == 0 can happen if the BO
* was being released but panfrost_bo_import() acquired the
* lock before panfrost_bo_unreference(). In that case, refcnt
* is 0 and we can't use panfrost_bo_reference() directly, we
@@ -492,7 +492,7 @@ panfrost_bo_import(struct panfrost_device *dev, int fd)
* make sure the object is not freed if panfrost_bo_import()
* acquired it in the meantime.
*/
if (p_atomic_read(&bo->refcnt))
if (p_atomic_read(&bo->refcnt) == 0)
p_atomic_set(&newbo->refcnt, 1);
else
panfrost_bo_reference(bo);