linux-kernel - [PATCH] irq-imgpdc: Use resource_size function on resource object

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Date:   Mon, 20 Nov 2017 23:02:41 +0100
From:   Vasyl Gomonovych <gomonovych@...il.com>
To:     tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com
Cc:     linux-kernel@...r.kernel.org, gomonovych@...il.com
Subject: [PATCH] irq-imgpdc: Use resource_size function on resource object

drivers/irqchip/irq-imgpdc.c:327:20-23: WARNING: Suspicious code. resource_size is maybe missing with res_regs

Generated by: scripts/coccinelle/api/resource_size.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@...il.com>
---
 drivers/irqchip/irq-imgpdc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index 1f59998e03f8..e80263e16c4c 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -325,7 +325,7 @@ static int pdc_intc_probe(struct platform_device *pdev)
 
 	/* Ioremap the registers */
 	priv->pdc_base = devm_ioremap(&pdev->dev, res_regs->start,
-				      res_regs->end - res_regs->start);
+				      resource_size(res_regs));
 	if (!priv->pdc_base)
 		return -EIO;
 
-- 
1.9.1