xen: Remove redundant initialization of irq

The variable irq is being initialized with a value that is never read
and it is being updated later with a new value.  The initialization is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Link: https://lore.kernel.org/r/20200611123134.922395-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index e3f1ca3..9f9aad4 100644 (file)
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -62,7 +62,7 @@ static int xen_pcifront_enable_irq(struct pci_dev *dev)
 #ifdef CONFIG_ACPI
 static int xen_register_pirq(u32 gsi, int triggering, bool set_pirq)
 {
-       int rc, pirq = -1, irq = -1;
+       int rc, pirq = -1, irq;
        struct physdev_map_pirq map_irq;
        int shareable = 0;
        char *name;