Commit 49bce159 authored Mar 29, 2015 by Vladimir Zapolskiy Committed by Felipe Balbi Apr 27, 2015

usb: gadget: xilinx: fix devm_ioremap_resource() check



devm_ioremap_resource() returns IOMEM_ERR_PTR() and it never
returns NULL, fix the check to prevent access to invalid
virtual address.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 22832190

drivers/usb/gadget/udc/udc-xilinx.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2071,8 +2071,8 @@ static int xudc_probe(struct platform_device *pdev)
		/* Map the registers */
		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		udc->addr = devm_ioremap_resource(&pdev->dev, res);
		if (!udc->addr)
		return -ENOMEM;
		if (IS_ERR(udc->addr))
		return PTR_ERR(udc->addr);

		irq = platform_get_irq(pdev, 0);
		if (irq < 0) {