From 216646e4d82e847791f0ba66c439dedd36cb119f Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 27 Apr 2017 15:21:13 +0000 Subject: [PATCH] irqchip/mbigen: Fix return value check in mbigen_device_probe() In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). Use devm_ioremap_resource() instead of devm_ioremap() to fix the IS_ERR() test issue. Fixes: 76e1f77f9c26 ("irqchip/mbigen: Introduce mbigen_of_create_domain()") Signed-off-by: Wei Yongjun Cc: Marc Zyngier Cc: Kefeng Wang Cc: Jason Cooper Link: http://lkml.kernel.org/r/20170427152113.31147-1-weiyj.lk@gmail.com Signed-off-by: Thomas Gleixner --- drivers/irqchip/irq-mbigen.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index 061cdb8bde8b..d2306c821ebb 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -337,8 +337,7 @@ static int mbigen_device_probe(struct platform_device *pdev) mgn_chip->pdev = pdev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - mgn_chip->base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); + mgn_chip->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(mgn_chip->base)) return PTR_ERR(mgn_chip->base);