[PATCH] knfsd: nfsd4 could leak a stateid in an error path

nfsd4 could leak a stateid in a case of kmalloc failure; fix.
Signed-off-by: Andy Adamson <andros@umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/nfsd/nfs4state.c

@@ -2153,8 +2153,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
 		if (!(lock->lk_stateowner = alloc_init_lock_stateowner(strhashval, open_sop->so_client, open_stp, lock)))
 			goto out;
 		if ((lock_stp = alloc_init_lock_stateid(lock->lk_stateowner, 
-						fp, open_stp)) == NULL)
+						fp, open_stp)) == NULL) {
+			release_stateowner(lock->lk_stateowner);
 			goto out;
+		}
 		/* bump the open seqid used to create the lock */
 		open_sop->so_seqid++;
 	} else {