NLM: Fix a memory leak in nlmsvc_testlock
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Tue, 9 Oct 2007 15:04:57 +0000 (11:04 -0400)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 9 Oct 2007 19:38:26 +0000 (12:38 -0700)
The recent fix for a circular lock dependency unfortunately introduced a
potential memory leak in the event where the call to nlmsvc_lookup_host
fails for some reason.

Thanks to Roel Kluin for spotting this.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/lockd/svclock.c

index d098c7af0d22e0b677ff34566087c0ff5ddaaf40..d120ec39bcb0ea5c472fc7c1f3ba277b9308709d 100644 (file)
@@ -485,8 +485,10 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
                        return nlm_granted;
                /* Create host handle for callback */
                host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
-               if (host == NULL)
+               if (host == NULL) {
+                       kfree(conf);
                        return nlm_lck_denied_nolocks;
+               }
                block = nlmsvc_create_block(rqstp, host, file, lock, cookie);
                if (block == NULL) {
                        kfree(conf);