Merge pull request #8098 from HJianBo/fix-bad-match

fix: fix badmatch for emqx_os_mon:update_mem_alarm_status/1

apps/emqx/src/emqx_os_mon.erl

@@ -193,7 +193,8 @@ update_mem_alarm_status(HWM) when HWM > 1.0 orelse HWM < 0.0 ->
     );
 update_mem_alarm_status(HWM) ->
     is_sysmem_check_supported() andalso
-        do_update_mem_alarm_status(HWM).
+        do_update_mem_alarm_status(HWM),
+    ok.
 
 do_update_mem_alarm_status(HWM0) ->
     HWM = HWM0 * 100,