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authorTomas Hozza <thozza@redhat.com>2013-06-27 13:52:48 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-26 16:40:41 -0700
commitd12e14692448e9f256028f53926a9bd3c3091e11 (patch)
treec873f1b8c031c0f23f6ea93321c87bc4a4cbd77b /tools/hv
parenttools: hv: Check return value of poll call (diff)
downloadlinux-dev-d12e14692448e9f256028f53926a9bd3c3091e11.tar.xz
linux-dev-d12e14692448e9f256028f53926a9bd3c3091e11.zip
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@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/hv')
-rw-r--r--tools/hv/hv_vss_daemon.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c
index 5febe3542f79..826d499dc354 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.
*/