[PATCH] Btrfs: remove always true if branch in btrfs_get_extent

[Liu Bo <bo.liu@linux.alibaba.com>]

@path is always NULL when it comes to the if branch.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
---
 fs/btrfs/inode.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8b135a46835f..4b79916472fb 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6825,18 +6825,15 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
 	em->len = (u64)-1;
 	em->block_len = (u64)-1;
 
+	path = btrfs_alloc_path();
 	if (!path) {
-		path = btrfs_alloc_path();
-		if (!path) {
-			err = -ENOMEM;
-			goto out;
-		}
-		/*
-		 * Chances are we'll be called again, so go ahead and do
-		 * readahead
-		 */
-		path->reada = READA_FORWARD;
+		err = -ENOMEM;
+		goto out;
 	}
+	/*
+	 * Chances are we'll be called again, so go ahead and do readahead.
+	 */
+	path->reada = READA_FORWARD;
 
 	ret = btrfs_lookup_file_extent(NULL, root, path, objectid, start, 0);
 	if (ret < 0) {
-- 
1.8.3.1