[FFmpeg-devel] 答复: [PATCH] avcodec/v4l2_m2m: close the invalid file descriptor -1 in function v4l2_m2m_destroy_context

From: "Wujian(Chin)" <wujian2@huawei.com>
To: "ffmpeg-devel@ffmpeg.org" <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] 答复: [PATCH]  avcodec/v4l2_m2m: close the invalid file descriptor -1 in function v4l2_m2m_destroy_context
Date: Sat, 25 Jun 2022 03:04:59 +0000
Message-ID: <bb49a8cada644e1c95624ccf9cb19b9a@huawei.com> (raw)

Hi:
Please review it.
Thks!

-----邮件原件-----
发件人: Wujian(Chin) 
发送时间: 2022年6月15日 19:15
收件人: 'ffmpeg-devel@ffmpeg.org' <ffmpeg-devel@ffmpeg.org>
主题: [PATCH] avcodec/v4l2_m2m: close the invalid file descriptor -1 in function v4l2_m2m_destroy_context

Signed-off-by: wujian_nanjing <wujian2@huawei.com>
---
 libavcodec/v4l2_m2m.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/v4l2_m2m.c b/libavcodec/v4l2_m2m.c index 51932ba..4427b48 100644
--- a/libavcodec/v4l2_m2m.c
+++ b/libavcodec/v4l2_m2m.c
@@ -251,7 +251,9 @@ static void v4l2_m2m_destroy_context(void *opaque, uint8_t *context)
     ff_v4l2_context_release(&s->capture);
     sem_destroy(&s->refsync);
 
-    close(s->fd);
+    if (s->fd >= 0)
+        close(s->fd);
+
     av_frame_unref(s->frame);
     av_frame_free(&s->frame);
     av_packet_unref(&s->buf_pkt);
--
2.7.4

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