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irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function

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The devm_ioremap_resource() function never returns NULL, it returns
error pointers.

Fixes: 61ce8d8d8a ("irqchip/irq-mvebu-sei: Add new driver for Marvell SEI")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel-janitors@vger.kernel.org
Link: https://lkml.kernel.org/r/20181013102246.GD16086@mwanda
This commit is contained in:
Dan Carpenter
2018-10-13 13:22:46 +03:00
committed by Thomas Gleixner
parent 57f01796f1
commit 3424243e39
1 changed files with 2 additions and 2 deletions
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4
drivers/irqchip/irq-mvebu-sei.c
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@@ -384,9 +384,9 @@ static int mvebu_sei_probe(struct platform_device *pdev)
sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sei->base = devm_ioremap_resource(sei->dev, sei->res); 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"); 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 */ /* Retrieve the SEI capabilities with the interrupt ranges */