linux-kernel - [PATCH 04/18] fs_context: fix fs_context leak in simple_pin

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Date:   Sun,  8 Jul 2018 14:01:40 -0700
From:   Eric Biggers <ebiggers3@...il.com>
To:     David Howells <dhowells@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>
Subject: [PATCH 04/18] fs_context: fix fs_context leak in simple_pin_fs()

From: Eric Biggers <ebiggers@...gle.com>

Fixes: 8a2e54b8af88 ("vfs: Implement a filesystem superblock creation/configuration context")
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 fs/libfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/libfs.c b/fs/libfs.c
index 823f0510e43da..d9a5d883dc3f5 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -588,8 +588,10 @@ int simple_pin_fs(struct file_system_type *type, struct vfsmount **mount, int *c
 			return PTR_ERR(fc);
 
 		ret = vfs_get_tree(fc);
-		if (ret < 0)
+		if (ret < 0) {
+			put_fs_context(fc);
 			return ret;
+		}
 
 		mnt = vfs_create_mount(fc, 0);
 		put_fs_context(fc);
-- 
2.18.0