linux-kernel - [PATCH] xen: remove redundant initialization of variable irq

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Date:   Thu, 11 Jun 2020 13:31:34 +0100
From:   Colin King <colin.king@...onical.com>
To:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H . Peter Anvin" <hpa@...or.com>,
        xen-devel@...ts.xenproject.org, linux-pci@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] xen: remove redundant initialization of variable irq

From: Colin Ian King <colin.king@...onical.com>

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")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 arch/x86/pci/xen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index e3f1ca316068..9f9aad42ccff 100644
--- 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;
-- 
2.27.0.rc0