libceph: use CEPH_MON_PORT when the specified port is 0

Similar to userspace, don't bail with "parse_ips bad ip ..." if the
specified port is port 0, instead use port CEPH_MON_PORT (6789, the
default monitor port).

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index bd172e1ee0ae..d2cadb5b2b63 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1866,7 +1866,9 @@ int ceph_parse_ips(const char *c, const char *end,
                                 port = (port * 10) + (*p - '0');
                                 p++;
                         }
-                        if (port > 65535 || port == 0)
+                        if (port == 0)
+                                port = CEPH_MON_PORT;
+                        else if (port > 65535)
                                 goto bad;
                 } else {
                         port = CEPH_MON_PORT;