From 8c4c419ca3bd5a5b3389114e037a9d17bdec3a5f Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Fri, 7 Dec 2012 15:44:46 -0700 Subject: watchdog: Orion: Fix possible null-deference in orion_wdt_probe If the DT does not include a regs parameter then the null res would be dereferenced. Signed-off-by: Jason Gunthorpe Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/orion_wdt.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 0478b001b1ef..7c18b3bffcf7 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -156,6 +156,8 @@ static int orion_wdt_probe(struct platform_device *pdev) wdt_tclk = clk_get_rate(clk); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; wdt_reg = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (!wdt_reg) return -ENOMEM; -- cgit v1.2.3