linux-kernel - [PATCH 5.4 412/434] ext4: unlock on error in ext4_expand_extra

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Date:   Sun, 29 Dec 2019 18:27:45 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Theodore Tso <tytso@....edu>, stable@...nel.org
Subject: [PATCH 5.4 412/434] ext4: unlock on error in ext4_expand_extra_isize()

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 7f420d64a08c1dcd65b27be82a27cf2bdb2e7847 upstream.

We need to unlock the xattr before returning on this error path.

Cc: stable@...nel.org # 4.13
Fixes: c03b45b853f5 ("ext4, project: expand inode extra size if possible")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Link: https://lore.kernel.org/r/20191213185010.6k7yl2tck3wlsdkt@kili.mountain
Signed-off-by: Theodore Ts'o <tytso@....edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/ext4/inode.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -6035,7 +6035,7 @@ int ext4_expand_extra_isize(struct inode
 	error = ext4_journal_get_write_access(handle, iloc->bh);
 	if (error) {
 		brelse(iloc->bh);
-		goto out_stop;
+		goto out_unlock;
 	}
 
 	error = __ext4_expand_extra_isize(inode, new_extra_isize, iloc,
@@ -6045,8 +6045,8 @@ int ext4_expand_extra_isize(struct inode
 	if (!error)
 		error = rc;
 
+out_unlock:
 	ext4_write_unlock_xattr(inode, &no_expand);
-out_stop:
 	ext4_journal_stop(handle);
 	return error;
 }