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 49278f830367eec97d34e862992d6f7f16e1e899..27a23785a50d3aea8e4e1e8aa78e8949d9c46c72 100644 (file)
--- 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);