ceph: add kfree() to error path

We leak a "pi" on this error path.

Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Sage Weil <[e-mail]>

fs/ceph/osdmap.c

···
 		if (ev > CEPH_PG_POOL_VERSION) {
 			pr_warning("got unknown v %d > %d of ceph_pg_pool\n",
 				   ev, CEPH_PG_POOL_VERSION);
+			kfree(pi);
 			goto bad;
 		}
 		__decode_pool(p, pi);