From mboxrd@z Thu Jan 1 00:00:00 1970 From: dan.carpenter@oracle.com (Dan Carpenter) Date: Sat, 13 Oct 2018 13:22:46 +0300 Subject: [PATCH] irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe Message-ID: <20181013102246.GD16086@mwanda> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The devm_ioremap_resource() function never returns NULL, it returns error pointers. Fixes: 61ce8d8d8a81 ("irqchip/irq-mvebu-sei: Add new driver for Marvell SEI") Signed-off-by: Dan Carpenter --- drivers/irqchip/irq-mvebu-sei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c index 566d69a2edbc..add4c9c934c8 100644 --- a/drivers/irqchip/irq-mvebu-sei.c +++ b/drivers/irqchip/irq-mvebu-sei.c @@ -384,9 +384,9 @@ static int mvebu_sei_probe(struct platform_device *pdev) sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sei->base = devm_ioremap_resource(sei->dev, sei->res); - if (!sei->base) { + if (IS_ERR(sei->base)) { dev_err(sei->dev, "Failed to remap SEI resource\n"); - return -ENODEV; + return PTR_ERR(sei->base); } /* Retrieve the SEI capabilities with the interrupt ranges */ -- 2.18.0