[PATCH] splice: fix pipe_to_file() ->prepare_write() error path

Don't jump to the unlock+release path, we already did that.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

fs/splice.c

@@ -607,7 +607,7 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 			ret = -ENOMEM;
 			page = page_cache_alloc_cold(mapping);
 			if (unlikely(!page))
-				goto out_nomem;
+				goto out_ret;
 
 			/*
 			 * This will also lock the page
@@ -666,7 +666,7 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 		if (sd->pos + this_len > isize)
 			vmtruncate(mapping->host, isize);
 
-		goto out;
+		goto out_ret;
 	}
 
 	if (buf->page != page) {
@@ -698,7 +698,7 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 out:
 	page_cache_release(page);
 	unlock_page(page);
-out_nomem:
+out_ret:
 	return ret;
 }