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PCI: ibmphp: fix get_max_bus_speed()

Message ID 20180419100549.GA10672@mwanda (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Dan Carpenter April 19, 2018, 10:05 a.m. UTC
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: 3749c51ac6c1 ("PCI: Make current and maximum bus speeds part of the PCI core")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Comments

Bjorn Helgaas April 30, 2018, 9:04 p.m. UTC | #1
On Thu, Apr 19, 2018 at 01:05:49PM +0300, Dan Carpenter wrote:
> 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: 3749c51ac6c1 ("PCI: Make current and maximum bus speeds part of the PCI core")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied to pci/hotplug for v4.18, thanks!

> diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
> index b81ca3fa0e84..1869b0411ce0 100644
> --- a/drivers/pci/hotplug/ibmphp_core.c
> +++ b/drivers/pci/hotplug/ibmphp_core.c
> @@ -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;
diff mbox

Patch

diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index b81ca3fa0e84..1869b0411ce0 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -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;