[2.6 patch] drivers/pci/hotplug/ibmphp_pci.c: fix NULL dereference
From: Adrian Bunk
Date: Thu Nov 16 2006 - 20:19:51 EST
The correct order is: NULL check before dereference
Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
--- linux-2.6.19-rc5-mm2/drivers/pci/hotplug/ibmphp_pci.c.old 2006-11-16 22:44:42.000000000 +0100
+++ linux-2.6.19-rc5-mm2/drivers/pci/hotplug/ibmphp_pci.c 2006-11-16 22:43:44.000000000 +0100
@@ -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);
-
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