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PCI: ibmphp: fix get_max_bus_speed()

PATCH Applied Dan Carpenter 2 participants 2 messages Apr 19, 2018 – Apr 30, 2018

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#0 lore raw

PATCH 1/1 PCI: ibmphp: fix 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 3749c51ac6c1 ("PCI: Make current and maximum bus speeds part of the PCI core")
drivers/pci/hotplug/ibmphp_core.c +1 -1
index b81ca3fa0e84..1869b0411ce0 100644
@@ -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;
#1 lore raw
Quoted 6 lines · Dan Carpenter

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")

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

Quoted 13 lines
drivers/pci/hotplug/ibmphp_core.c +1 -1
index b81ca3fa0e84..1869b0411ce0 100644
@@ -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;