[v2,02/20] NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
diff mbox series

Message ID 20191031224051.8923-3-trond.myklebust@hammerspace.com
State New
Headers show
Series
  • Delegation bugfixes
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Commit Message

Trond Myklebust Oct. 31, 2019, 10:40 p.m. UTC
A typo in nfs4_refresh_delegation_stateid() means we're leaking an
RCU lock, and always returning a value of 'false'. As the function
description states, we were always supposed to return 'true' if a
matching delegation was found.

Fixes: 12f275cdd163 ("NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID.")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 fs/nfs/delegation.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index ccdfb5f98f35..af549d70ec50 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -1191,7 +1191,7 @@  bool nfs4_refresh_delegation_stateid(nfs4_stateid *dst, struct inode *inode)
 	if (delegation != NULL &&
 	    nfs4_stateid_match_other(dst, &delegation->stateid)) {
 		dst->seqid = delegation->stateid.seqid;
-		return ret;
+		ret = true;
 	}
 	rcu_read_unlock();
 out: