[FFmpeg-devel] [PATCH] avutil/hwcontext: don't assume device_uninit is reentrant

Zhao Zhili quinkblack at foxmail.com
Fri Mar 18 19:29:20 EET 2022


device_uninit will be called by hwdevice_ctx_free. It's not a real
issue now since all of the implementaions have reentrant uninit,
but it was, e.g., f6d49a0. We can remove the restriction, and make
the code more simple.
---
 libavutil/hwcontext.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
index ab9ad3703e..8149f4e18b 100644
--- a/libavutil/hwcontext.c
+++ b/libavutil/hwcontext.c
@@ -201,18 +201,12 @@ fail:
 int av_hwdevice_ctx_init(AVBufferRef *ref)
 {
     AVHWDeviceContext *ctx = (AVHWDeviceContext*)ref->data;
-    int ret;
+    int ret = 0;
 
     if (ctx->internal->hw_type->device_init) {
         ret = ctx->internal->hw_type->device_init(ctx);
-        if (ret < 0)
-            goto fail;
     }
 
-    return 0;
-fail:
-    if (ctx->internal->hw_type->device_uninit)
-        ctx->internal->hw_type->device_uninit(ctx);
     return ret;
 }
 
-- 
2.31.1



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