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Commit 359016032239e0a585c01bffe04b72ab037e5de4

Authored by Tomas Hozza
Committed by Greg Kroah-Hartman
1 parent 98b80d8938
Exists in smarc-imx_3.14.28_1.0.0_ga and in 1 other branch imx_3.14.28_1.0.0_ga

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>
Acked-by:  K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Showing 1 changed file with 7 additions and 1 deletions Side-by-side Diff

tools/hv/hv_kvp_daemon.c
Diff comments   View file @ 3590160
... ... @@ -1457,7 +1457,13 @@
1457 1457 exit(EXIT_FAILURE);
1458 1458 }
1459 1459 nl_group = CN_KVP_IDX;
1460   - setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group));
  1460 +
  1461 + if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group)) < 0) {
  1462 + syslog(LOG_ERR, "setsockopt failed; error: %d %s", errno, strerror(errno));
  1463 + close(fd);
  1464 + exit(EXIT_FAILURE);
  1465 + }
  1466 +
1461 1467 /*
1462 1468 * Register ourselves with the kernel.
1463 1469 */