From: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
The error code path of the x86 package temperature thermal driver's
initialization routine, pkg_temp_thermal_init(), makes an unbalanced
call to get_online_cpus(), which causes subsequent CPU offline
operations, and consequently system suspend, to permanently block
in cpu_hotplug_begin() on systems where get_core_online() returns
an error code.
Remove the extra get_online_cpus() to fix the problem (tested on
Toshiba Portege R500).
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
---
drivers/thermal/x86_pkg_temp_thermal.c | 1 -
1 file changed, 1 deletion(-)
Index: linux-pm/drivers/thermal/x86_pkg_temp_thermal.c
===================================================================
--- linux-pm.orig/drivers/thermal/x86_pkg_temp_thermal.c
+++ linux-pm/drivers/thermal/x86_pkg_temp_thermal.c
@@ -592,7 +592,6 @@ static int __init pkg_temp_thermal_init(
return 0;
err_ret:
- get_online_cpus();
for_each_online_cpu(i)
put_core_offline(i);
put_online_cpus();
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
