linux-kernel - [PATCH 4/5] btrfs: Use common error handling code in update_ref

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Date:   Mon, 21 Aug 2017 14:41:43 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-btrfs@...r.kernel.org, Chris Mason <clm@...com>,
        David Sterba <dsterba@...e.com>, Josef Bacik <jbacik@...com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 4/5] btrfs: Use common error handling code in
 update_ref_path()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 21 Aug 2017 13:34:29 +0200

Add a jump target so that a bit of exception handling can be better reused
in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 fs/btrfs/send.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 59fb1ed6ca20..a96edc91a101 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3697,12 +3697,12 @@ static int update_ref_path(struct send_ctx *sctx, struct recorded_ref *ref)
 		return -ENOMEM;
 
 	ret = get_cur_path(sctx, ref->dir, ref->dir_gen, new_path);
-	if (ret < 0) {
-		fs_path_free(new_path);
-		return ret;
-	}
+	if (ret < 0)
+		goto free_path;
+
 	ret = fs_path_add(new_path, ref->name, ref->name_len);
 	if (ret < 0) {
+free_path:
 		fs_path_free(new_path);
 		return ret;
 	}
-- 
2.14.0