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irqchip/mbigen: Fix return value check in mbigen_device_probe()

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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: 76e1f77f9c ("irqchip/mbigen: Introduce mbigen_of_create_domain()")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/20170427152113.31147-1-weiyj.lk@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Wei Yongjun 2017-04-27 15:21:13 +00:00 committed by Thomas Gleixner
parent 8ada00a650
commit 216646e4d8
1 changed files with 1 additions and 2 deletions
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3
drivers/irqchip/irq-mbigen.c
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@ -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);