svn commit: r352415 - stable/12/sys/dev/ichsmb

[Yuri Pankov]

Author: yuripv
Date: Mon Sep 16 16:10:44 2019
New Revision: 352415
URL: https://svnweb.freebsd.org/changeset/base/352415

Log:
  MFC r351604:
  
  ichsmb: defer smbus attach until interrupts are available
  
  This fixes a "timed sleep before timers are working" panic seen
  while attaching jedec_dimm(4) instances too early in the boot.
  
  Submitted by:	ian
  Reviewed by:	hselasky
  Differential Revision:	https://reviews.freebsd.org/D21452

Modified:
  stable/12/sys/dev/ichsmb/ichsmb.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/dev/ichsmb/ichsmb.c
==============================================================================
--- stable/12/sys/dev/ichsmb/ichsmb.c	Mon Sep 16 15:56:21 2019	(r352414)
+++ stable/12/sys/dev/ichsmb/ichsmb.c	Mon Sep 16 16:10:44 2019	(r352415)
@@ -131,11 +131,8 @@ ichsmb_attach(device_t dev)
 		goto fail;
 	}
 
-	/* Attach "smbus" child */
-	if ((error = bus_generic_attach(dev)) != 0) {
-		device_printf(dev, "failed to attach child: %d\n", error);
-		goto fail;
-	}
+	/* Probe and attach the smbus when interrupts are available */
+	config_intrhook_oneshot((ich_func_t)bus_generic_attach, dev);
 
 	return (0);