From: Adrian Bunk <bunk@stusta.de>

The correct order is: NULL check before dereference

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/pci/hotplug/ibmphp_pci.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff -puN drivers/pci/hotplug/ibmphp_pci.c~drivers-pci-hotplug-ibmphp_pcic-fix-null-dereference drivers/pci/hotplug/ibmphp_pci.c
--- a/drivers/pci/hotplug/ibmphp_pci.c~drivers-pci-hotplug-ibmphp_pcic-fix-null-dereference
+++ a/drivers/pci/hotplug/ibmphp_pci.c
@@ -1371,12 +1371,12 @@ static int unconfigure_boot_bridge (u8 b
 	}
 
 	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);
 
_