From: Fred Isaman <iisaman@netapp.com>
Date: Thu, 5 Apr 2012 19:26:36 +0000 (-0400)
Subject: NFS: check for req==NULL in nfs_try_to_update_request cleanup
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=ca138f368a36dba40d3ef4a53d64af2011cda3c7;p=~shefty%2Frdma-dev.git

NFS: check for req==NULL in nfs_try_to_update_request cleanup

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 2c68818f68a..9b8d4d42a8a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -682,7 +682,8 @@ static struct nfs_page *nfs_try_to_update_request(struct inode *inode,
 		req->wb_bytes = rqend - req->wb_offset;
 out_unlock:
 	spin_unlock(&inode->i_lock);
-	nfs_clear_request_commit(req);
+	if (req)
+		nfs_clear_request_commit(req);
 	return req;
 out_flushme:
 	spin_unlock(&inode->i_lock);