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Commit d12e1469 authored by Tomas Hozza's avatar Tomas Hozza Committed by Greg Kroah-Hartman
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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: default avatarTomas Hozza <thozza@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9561d479

tools/hv/hv_vss_daemon.c

+5 −1
Original line number Diff line number Diff line
@@ -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.

	 */