[PATCH 2/3] tools: hv: Check return value of setsockopt call
KY Srinivasan
kys at microsoft.com
Thu Jun 27 12:31:59 UTC 2013
> -----Original Message-----
> From: Tomas Hozza [mailto:thozza at redhat.com]
> Sent: Thursday, June 27, 2013 7:53 AM
> To: gregkh at linuxfoundation.org
> Cc: jasowang at redhat.com; devel at linuxdriverproject.org; KY Srinivasan; Haiyang
> Zhang; Tomas Hozza
> Subject: [PATCH 2/3] tools: hv: Check return value of setsockopt call
>
> Check return value of setsockopt call and if it fails print error to the
> system log and exit with non-zero value.
>
> Signed-off-by: Tomas Hozza <thozza at redhat.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
> ---
> tools/hv/hv_vss_daemon.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c
> index 64112e1..6c4d2f1 100644
> --- a/tools/hv/hv_vss_daemon.c
> +++ b/tools/hv/hv_vss_daemon.c
> @@ -173,7 +173,11 @@ int main(void)
> exit(EXIT_FAILURE);
> }
> nl_group = CN_VSS_IDX;
> - setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group,
> sizeof(nl_group));
> + if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP,
> &nl_group, sizeof(nl_group)) < 0) {
> + syslog(LOG_ERR, "setsockopt failed; error:%d %s", errno,
> strerror(errno));
> + close(fd);
> + exit(EXIT_FAILURE);
> + }
> /*
> * Register ourselves with the kernel.
> */
> --
> 1.8.1.4
>
>
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