> -----Original Message----- > From: Tomas Hozza [mailto:thozza@xxxxxxxxxx] > Sent: Thursday, June 27, 2013 7:53 AM > To: gregkh@xxxxxxxxxxxxxxxxxxx > Cc: jasowang@xxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; 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@xxxxxxxxxx> Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > --- > 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 > > _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
