diff --git a/fs/exfat/exfat_core.c b/fs/exfat/exfat_core.c
index 9fb6b84f2848..07befe78d03c 100644
--- a/fs/exfat/exfat_core.c
+++ b/fs/exfat/exfat_core.c
@@ -1753,8 +1753,14 @@ void fs_sync(struct super_block *sb, s32 do_sync)
 
 void fs_error(struct super_block *sb)
 {
-	struct exfat_mount_options *opts = &EXFAT_SB(sb)->options;
-	struct exfat_sb_info *sbi = EXFAT_SB(sb);
+	struct exfat_mount_options *opts;
+	struct exfat_sb_info *sbi;
+	if ( sb == NULL || EXFAT_SB(sb)== NULL) {
+		printk(KERN_ERR "[EXFAT] filesystem maybe unmounted!!!\n");
+		return;
+	}
+	opts = &EXFAT_SB(sb)->options;
+	sbi = EXFAT_SB(sb);
 
 	if (opts->errors == EXFAT_ERRORS_PANIC)
 		panic("[EXFAT] Filesystem panic from previous error\n");