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>
mariux64 · Apr 18, 2012 · ca138f3 · ca138f3
1 parent adae0fe
commit ca138f3
Showing 1 changed file with 2 additions and 1 deletion.
diff --git 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);