diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index b72a22a57d20..ca0eaf2147b0 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -70,8 +70,9 @@ static int ext4_journal_check_start(struct super_block *sb)
 	if (unlikely(ext4_forced_shutdown(sb)))
 		return -EIO;
 
-	if (sb_rdonly(sb))
+	if (WARN_ON_ONCE(sb_rdonly(sb)))
 		return -EROFS;
+
 	WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);
 	journal = EXT4_SB(sb)->s_journal;
 	/*