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PCI: ibmphp: Fix use-before-set in get_max_bus_speed() 

The "rc" variable is only initialized on the error path.  The caller
doesn't check the return but, if "rc" is non-zero, then this function is
basically a no-op.

Fixes: 3749c51ac6 ("PCI: Make current and maximum bus speeds part of the PCI core")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Dan Carpenter 2018-04-19 13:05:49 +03:00 committed by Bjorn Helgaas
parent 60cc43fc88
commit 4051f5ebb1
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/hotplug/ibmphp_core.c
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@ -379,7 +379,7 @@ static int get_adapter_present(struct hotplug_slot *hotplug_slot, u8 *value)
static int get_max_bus_speed(struct slot *slot)
{
int rc;
int rc = 0;
u8 mode = 0;
enum pci_bus_speed speed;
struct pci_bus *bus = slot->hotplug_slot->pci_slot->bus;