Commit 89a3fd35 authored Sep 13, 2010 by Jan Beulich Committed by Guenter Roeck Sep 24, 2010

x86/hwmon: fix module init for hotplug-but-no-device-found case



In commit 0dca94ba the call to
platform_driver_unregister() was made conditional upon !HOTPLUG_CPU,
but the return value from coretemp_init() was left to indicate an
error. This isn't correct, as the negative return value indicates to
the module loader that initialization failed, which isn't intended
here and results in dangling pointers.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

parent f7c77a3d

drivers/hwmon/coretemp.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -541,16 +541,19 @@ static int __init coretemp_init(void)
		" has no thermal sensor.\n", c->x86_model);
		}
		}

		#ifndef CONFIG_HOTPLUG_CPU
		if (list_empty(&pdev_list)) {
		err = -ENODEV;
		goto exit_driver_unreg;
		}
		#endif

		register_hotcpu_notifier(&coretemp_cpu_notifier);
		return 0;

		exit_driver_unreg:
		#ifndef CONFIG_HOTPLUG_CPU
		exit_driver_unreg:
		platform_driver_unregister(&coretemp_driver);
		#endif
		exit: