diff mbox series

[4.14.y,1/3] ext4: handle error of ext4_setup_system_zone() on remount

Message ID 20210317164414.17364-2-jack@suse.cz
State New
Headers show
Series ext4: Avoid crash when journal inode extents are corrupted | expand

Commit Message

Jan Kara March 17, 2021, 4:44 p.m. UTC 
commit d176b1f62f242ab259ff665a26fbac69db1aecba upstream.

ext4_setup_system_zone() can fail. Handle the failure in ext4_remount().

Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20200728130437.7804-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 fs/ext4/super.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index eaa8bcd59b6a..8e6178dc0e6e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5364,7 +5364,10 @@  static int ext4_remount(struct super_block *sb, int *flags, char *data)
 		ext4_register_li_request(sb, first_not_zeroed);
 	}
 
-	ext4_setup_system_zone(sb);
+	err = ext4_setup_system_zone(sb);
+	if (err)
+		goto restore_opts;
+
 	if (sbi->s_journal == NULL && !(old_sb_flags & MS_RDONLY))
 		ext4_commit_super(sb, 1);