pmu: fix kernel panic on for_each_pci_dev

Setting pdev initial value to NULL in order to avoid kernel panic
in "for_each_pci_dev()."

Change-Id: I5970ec466c645bf3ebd168b973ccb612dbd424e3
Signed-off-by: Jekyll Lai <jekyll_lai@wistron.com>

diff --git a/arch/x86/platform/mrst/pmu.c b/arch/x86/platform/mrst/pmu.c
index 4aeb189..e02b4bd 100644 (file)
--- a/arch/x86/platform/mrst/pmu.c
+++ b/arch/x86/platform/mrst/pmu.c
@@ -581,7 +581,7 @@ static const struct file_operations devices_state_operations = {
  */
 static void pmu_scu_firmware_debug(void)
 {
-       struct pci_dev *pdev;
+       struct pci_dev *pdev = NULL;
 
        for_each_pci_dev(pdev) {
                struct mrst_device *mrst_dev;