nfs: path_{get,put}() cleanups

Here are some more places where path_{get,put}() can be used instead of
dput()/mntput() pair.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 421d338..596c5d8 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -541,8 +541,7 @@
 	}
 	if (ctx->cred != NULL)
 		put_rpccred(ctx->cred);
-	dput(ctx->path.dentry);
-	mntput(ctx->path.mnt);
+	path_put(&ctx->path);
 	kfree(ctx);
 }