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authorEric Anholt <[email protected]>2018-04-25 09:47:40 -0700
committerJuan A. Suarez Romero <[email protected]>2018-04-30 18:42:39 +0200
commitc0aeac153685c784dfc37674957347a2b6a7c7ab (patch)
tree34992af0549f50b9f486f17584d5b23ce4e2686c /src
parent1fccd6736a1644d7d7f2d481511df1b045126435 (diff)
gallium/util: Fix incorrect refcounting of separate stencil.
The driver may have a reference on the separate stencil buffer for some reason (like an unflushed job using it), so we can't directly free the resource and should instead just decrement the refcount that we own. Fixes double-free in KHR-GLES3.packed_depth_stencil.blit.depth32f_stencil8 on vc5. Fixes: e94eb5e6000e ("gallium/util: add u_transfer_helper") Reviewed-by: Rob Clark <[email protected]> (cherry picked from commit 069c409f434ab215940aad2092d5d236b410a7b9)
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/util/u_transfer_helper.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/util/u_transfer_helper.c b/src/gallium/auxiliary/util/u_transfer_helper.c
index dd31049920f..3b085fd99f0 100644
--- a/src/gallium/auxiliary/util/u_transfer_helper.c
+++ b/src/gallium/auxiliary/util/u_transfer_helper.c
@@ -138,8 +138,7 @@ u_transfer_helper_resource_destroy(struct pipe_screen *pscreen,
if (helper->vtbl->get_stencil) {
struct pipe_resource *stencil = helper->vtbl->get_stencil(prsc);
- if (stencil)
- helper->vtbl->resource_destroy(pscreen, stencil);
+ pipe_resource_reference(&stencil, NULL);
}
helper->vtbl->resource_destroy(pscreen, prsc);