avcodec/v4l2_m2m: adapt to call close() on init fail

This fixes several mem leaks when init of encoder/decoder failed.

Fixes ticket #8285

Signed-off-by: Andriy Gelman <andriy.gelman@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/libavcodec/v4l2_m2m.c b/libavcodec/v4l2_m2m.c
index d8d872ea09..944c1a2823 100644
--- a/libavcodec/v4l2_m2m.c
+++ b/libavcodec/v4l2_m2m.c
@@ -330,6 +330,7 @@ static void v4l2_m2m_destroy_context(void *opaque, uint8_t *context)
 
     close(s->fd);
     av_frame_free(&s->frame);
+    av_packet_unref(&s->buf_pkt);
 
     av_free(s);
 }
@@ -339,6 +340,10 @@ int ff_v4l2_m2m_codec_end(V4L2m2mPriv *priv)
     V4L2m2mContext *s = priv->context;
     int ret;
 
+    if (!s)
+        return 0;
+
+    if (s->fd >= 0) {
     ret = ff_v4l2_context_set_status(&s->output, VIDIOC_STREAMOFF);
     if (ret)
         av_log(s->avctx, AV_LOG_ERROR, "VIDIOC_STREAMOFF %s\n", s->output.name);
@@ -346,6 +351,7 @@ int ff_v4l2_m2m_codec_end(V4L2m2mPriv *priv)
     ret = ff_v4l2_context_set_status(&s->capture, VIDIOC_STREAMOFF);
     if (ret)
         av_log(s->avctx, AV_LOG_ERROR, "VIDIOC_STREAMOFF %s\n", s->capture.name);
+    }
 
     ff_v4l2_context_release(&s->output);