From: Dan Carpenter <error27@gmail.com>
Date: Sun, 21 Mar 2010 16:10:34 +0000 (-0400)
Subject: sunrpc: handle allocation errors from __rpc_lookup_create()
X-Git-Tag: firefly_0821_release~10186^2~1952
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a420c0a1ec9d34fa8923f59e12d4ad9047db490b;p=firefly-linux-kernel-4.4.55.git

sunrpc: handle allocation errors from __rpc_lookup_create()

commit f1f0abe192a72e75d7c59972e30784d043fd8d73 upstream.

__rpc_lookup_create() can return ERR_PTR(-ENOMEM).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 49278f830367..27a23785a50d 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -587,6 +587,8 @@ static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
 	struct dentry *dentry;
 
 	dentry = __rpc_lookup_create(parent, name);
+	if (IS_ERR(dentry))
+		return dentry;
 	if (dentry->d_inode == NULL)
 		return dentry;
 	dput(dentry);