From: Chao Yu <chao@kernel.org>
Date: Fri, 12 Apr 2024 06:36:38 +0000 (+0800)
Subject: bcachefs: fix error path of __bch2_read_super()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3078e059a5e984663c5c2b04485375c84c2700f9;p=linux.git

bcachefs: fix error path of __bch2_read_super()

In __bch2_read_super(), if kstrdup() fails, it needs to release memory
in sb->holder, fix to call bch2_free_super() in the error path.

Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/super-io.c b/fs/bcachefs/super-io.c
index e0aa3655b63b4..648986a7dbdee 100644
--- a/fs/bcachefs/super-io.c
+++ b/fs/bcachefs/super-io.c
@@ -700,8 +700,11 @@ retry:
 		return -ENOMEM;
 
 	sb->sb_name = kstrdup(path, GFP_KERNEL);
-	if (!sb->sb_name)
-		return -ENOMEM;
+	if (!sb->sb_name) {
+		ret = -ENOMEM;
+		prt_printf(&err, "error allocating memory for sb_name");
+		goto err;
+	}
 
 #ifndef __KERNEL__
 	if (opt_get(*opts, direct_io) == false)