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fix wait after vfork return error

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vfork use waitpid hang father process,
but waitpid release child processs information by default.
So when user call wait, it return errno 10.

Signed-off-by: yangyalei <yangyalei@xiaomi.com>
This commit is contained in:
yangyalei
2023-08-16 11:45:04 +08:00
committed by Petro Karashchenko
parent eba2f163ed
commit fd776e8cee
4 changed files with 11 additions and 8 deletions
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drivers/video/goldfish_camera.c
+1 -1
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@@ -628,7 +628,7 @@ static int goldfish_camera_data_uninit(FAR struct imgdata_s *data)
priv->streaming = false;
nxsem_post(&priv->run);
nxsched_waitpid(priv->pid, NULL, 0, 0);
nxsched_waitpid(priv->pid, NULL, 0);
nxsem_destroy(&priv->run);
file_close(&priv->file);