hwmon: (coretemp) Fix oops on CPU offlining

This is for stable kernel branch 3.0 only. Previous and later versions
have different code paths and are not affected by this bug.

This is the same fix as "hwmon: (coretemp) Fix oops on driver load"
but for the CPU offlining case. Sorry for missing it at first.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Durgadoss R <durgadoss.r@intel.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 835ae427d85193d5da9764f287f8a8a1070a0880..6163cfa95c3ebcb148ee3037925b977867ce8675 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -747,6 +747,8 @@ static void __cpuinit put_core_offline(unsigned int cpu)
                return;
 
        pdata = platform_get_drvdata(pdev);
+       if (!pdata)
+               return;
 
        indx = TO_ATTR_NO(cpu);