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dma-buf: Fix one use-after-free of fence 

Need get the new fence when we replace the old one.

Fixes: 047a1b877e ("dma-buf & drm/amdgpu: remove dma_resv workaround")
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220707080241.20060-1-xinhui.pan@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
xinhui pan 2022-07-07 16:02:41 +08:00 committed by Christian König
parent 9fc33eaaa9
commit 7c1aeba7bb
1 changed files with 1 additions and 1 deletions
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2
drivers/dma-buf/dma-resv.c
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@ -343,7 +343,7 @@ void dma_resv_replace_fences(struct dma_resv *obj, uint64_t context,
if (old->context != context)
continue;
dma_resv_list_set(list, i, replacement, usage);
dma_resv_list_set(list, i, dma_fence_get(replacement), usage);
dma_fence_put(old);
}
}