sunrpc: handle allocation errors from __rpc_lookup_create()

__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>
Cc: stable@kernel.org

1 files changed, 2 insertions, 0 deletions

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 8d63f8fd29b7..20e30c6f8355 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);