linux-kernel - [PATCH] btrfs: prevent memory leak in super.c

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Message-Id: <20190923225713.13381-1-navid.emamdoost@gmail.com>
Date:   Mon, 23 Sep 2019 17:57:10 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] btrfs: prevent memory leak in super.c

In btrfs_mount_root the last error checking was not going to the error
handling path. Fixed it.

Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 fs/btrfs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 1b151af25772..9f3f62c000fa 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1565,7 +1565,7 @@ static struct dentry *btrfs_mount_root(struct file_system_type *fs_type,
 	security_free_mnt_opts(&new_sec_opts);
 	if (error) {
 		deactivate_locked_super(s);
-		return ERR_PTR(error);
+		goto error_close_devices;
 	}
 
 	return dget(s->s_root);
-- 
2.17.1