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tools: hv: Check return value of setsockopt call

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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 <[email protected]>
Acked-by:  K. Y. Srinivasan <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Tomas Hozza 2013-05-22 14:54:30 +02:00 • committed by Greg Kroah-Hartman
commit 3590160322
1 changed files with 7 additions and 1 deletions
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8
tools/hv/hv_kvp_daemon.c
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@ -1457,7 +1457,13 @@ int main(void)
exit(EXIT_FAILURE);
}
nl_group = CN_KVP_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.
*/