From: Jan Kara <j...@suse.cz> [ Upstream commit d176b1f62f242ab259ff665a26fbac69db1aecba ]
ext4_setup_system_zone() can fail. Handle the failure in ext4_remount(). Reviewed-by: Lukas Czerner <lczer...@redhat.com> Signed-off-by: Jan Kara <j...@suse.cz> Link: https://lore.kernel.org/r/20200728130437.7804-2-j...@suse.cz Signed-off-by: Theodore Ts'o <ty...@mit.edu> Signed-off-by: Sasha Levin <sas...@kernel.org> --- fs/ext4/super.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 03ebb0b385467..daabd7a2cee81 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5470,7 +5470,10 @@ 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 & SB_RDONLY)) { err = ext4_commit_super(sb, 1); if (err) -- 2.25.1
