Messages in this thread Patch in this message | | | Date | Fri, 7 Dec 2012 15:44:46 -0700 | From | Jason Gunthorpe <> | Subject | [PATCH] ARM: 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 <jgunthorpe@obsidianresearch.com> --- drivers/watchdog/orion_wdt.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index c20f96b..140a1e3 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -156,6 +156,8 @@ static int __devinit 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; -- 1.7.5.4
| |