From 3424243e39e8ec138486926949e3668e7553125d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 13 Oct 2018 13:22:46 +0300 Subject: irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function 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 Signed-off-by: Thomas Gleixner Reviewed-by: Miquel Raynal Cc: Jason Cooper Cc: Andrew Lunn Cc: Gregory Clement Cc: Sebastian Hesselbarth Cc: Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org Cc: kernel-janitors@vger.kernel.org Link: https://lkml.kernel.org/r/20181013102246.GD16086@mwanda --- drivers/irqchip/irq-mvebu-sei.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') 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 */ -- cgit v1.2.3