Re: [Qemu-devel] [PATCH] socket: dont't free msgfds if error equals EAGAIN

[linzhecheng]

CC'ing Daniel P. Berrangé , Peter Xu, Marc-André Lureau, Eric Blake, Gonglei

> -----邮件原件-----
> 发件人: linzhecheng
> 发送时间: 2018年5月29日 10:53
> 收件人: address@hidden
> 抄送: address@hidden; wangxin (U) <address@hidden>;
> linzhecheng <address@hidden>
> 主题: [PATCH] socket: dont't free msgfds if error equals EAGAIN
> 
> Signed-off-by: linzhecheng <address@hidden>
> 
> diff --git a/chardev/char-socket.c b/chardev/char-socket.c index
> 159e69c3b1..17519ec589 100644
> --- a/chardev/char-socket.c
> +++ b/chardev/char-socket.c
> @@ -134,8 +134,8 @@ static int tcp_chr_write(Chardev *chr, const uint8_t
> *buf, int len)
>                                          s->write_msgfds,
>                                          s->write_msgfds_num);
> 
> -        /* free the written msgfds, no matter what */
> -        if (s->write_msgfds_num) {
> +        /* free the written msgfds in any cases other than errno==EAGAIN */
> +        if (EAGAIN != errno && s->write_msgfds_num) {
>              g_free(s->write_msgfds);
>              s->write_msgfds = 0;
>              s->write_msgfds_num = 0;
> --
> 2.12.2.windows.2
>