PCI / PM: check all fields in pci_set_platform_pm()

When assign new PCI platform PM operations check for all mandatory fields to
prevent NULL pointer dereference.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index c8b4dbd..badbddc 100644 (file)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -530,8 +530,8 @@ static const struct pci_platform_pm_ops *pci_platform_pm;
 
 int pci_set_platform_pm(const struct pci_platform_pm_ops *ops)
 {
-       if (!ops->is_manageable || !ops->set_state || !ops->choose_state
-           || !ops->sleep_wake)
+       if (!ops->is_manageable || !ops->set_state || !ops->choose_state ||
+           !ops->sleep_wake || !ops->run_wake || !ops->need_resume)
                return -EINVAL;
        pci_platform_pm = ops;
        return 0;