PCI: ibmphp_pci.c: fix NULL dereference

The correct order is: NULL check before dereference

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/pci/hotplug/ibmphp_pci.c b/drivers/pci/hotplug/ibmphp_pci.c
index d87a9e3eaeeb..d8f05d7a3c72 100644
--- a/drivers/pci/hotplug/ibmphp_pci.c
+++ b/drivers/pci/hotplug/ibmphp_pci.c
@@ -1371,12 +1371,12 @@ static int unconfigure_boot_bridge (u8 busno, u8 device, u8 function)
         }
 
         bus = ibmphp_find_res_bus (sec_number);
-        debug ("bus->busno is %x\n", bus->busno);
-        debug ("sec_number is %x\n", sec_number);
         if (!bus) {
                 err ("cannot find Bus structure for the bridged device\n");
                 return -EINVAL;
         }
+        debug("bus->busno is %x\n", bus->busno);
+        debug("sec_number is %x\n", sec_number);
 
         ibmphp_remove_bus (bus, busno);