diff --git a/kdumpctl b/kdumpctl
index fb5b35a..503e44e 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -532,28 +532,22 @@ check_fs_modified()
 check_system_modified()
 {
 	local ret
+	local CONF_ERROR=2
+	local CONF_MODIFY=1
+	local CONF_NO_MODIFY=0
+	local conf_status=$CONF_NO_MODIFY
 
 	[[ -f $TARGET_INITRD ]] || return 1
 
-	check_files_modified
-	ret=$?
-	if [[ $ret -ne 0 ]]; then
-		return $ret
-	fi
+	for _func in check_files_modified check_fs_modified check_drivers_modified; do
+		$_func
+		ret=$?
+		# return immediately if an error occurred.
+		[[ $ret -eq "$CONF_ERROR" ]] && return "$ret"
+		[[ $ret -eq "$CONF_MODIFY" ]] && { conf_status="$CONF_MODIFY"; }
+	done
 
-	check_fs_modified
-	ret=$?
-	if [[ $ret -ne 0 ]]; then
-		return $ret
-	fi
-
-	check_drivers_modified
-	ret=$?
-	if [[ $ret -ne 0 ]]; then
-		return $ret
-	fi
-
-	return 0
+	return $conf_status
 }
 
 check_rebuild()