linux-kernel - [PATCH -next] mfd: altera-sysmgr: Use resource

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Date:   Sat, 14 Nov 2020 17:24:20 +0800
From:   Zou Wei <zou_wei@...wei.com>
To:     <thor.thayer@...ux.intel.com>, <lee.jones@...aro.org>
CC:     <linux-kernel@...r.kernel.org>, Zou Wei <zou_wei@...wei.com>
Subject: [PATCH -next] mfd: altera-sysmgr: Use resource_size function on resource object

./drivers/mfd/altera-sysmgr.c:155:36-39: WARNING: Suspicious code. resource_size is maybe missing with res

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

Signed-off-by: Zou Wei <zou_wei@...wei.com>
---
 drivers/mfd/altera-sysmgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c
index 41076d1..193a96c 100644
--- a/drivers/mfd/altera-sysmgr.c
+++ b/drivers/mfd/altera-sysmgr.c
@@ -152,7 +152,7 @@ static int sysmgr_probe(struct platform_device *pdev)
 		if (!base)
 			return -ENOMEM;
 
-		sysmgr_config.max_register = res->end - res->start - 3;
+		sysmgr_config.max_register = resource_size(res) - 3;
 		regmap = devm_regmap_init_mmio(dev, base, &sysmgr_config);
 	}
 
-- 
2.6.2