From 7472fd36a87e84c2819066543224285a6ab79ffc Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Tue, 2 Oct 2007 13:30:06 -0700 Subject: [POWERPC] Sky Cpu and Nexus: check for platform_get_resource retcode Add adds checking for platform_get_resource() return code to prevent possible NULL pointer usage. Signed-off-by: Cyrill Gorcunov Cc: Benjamin Herrenschmidt Cc: Kumar Gala Cc: Brian Waite Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- drivers/misc/hdpuftrs/hdpu_cpustate.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/misc/hdpuftrs/hdpu_cpustate.c') diff --git a/drivers/misc/hdpuftrs/hdpu_cpustate.c b/drivers/misc/hdpuftrs/hdpu_cpustate.c index b5c6f21dcb6..b16742c7c69 100644 --- a/drivers/misc/hdpuftrs/hdpu_cpustate.c +++ b/drivers/misc/hdpuftrs/hdpu_cpustate.c @@ -194,6 +194,11 @@ static int hdpu_cpustate_probe(struct platform_device *pdev) int ret; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + printk(KERN_ERR "sky_cpustate: " + "Invalid memory resource.\n"); + return -EINVAL; + } cpustate.set_addr = (unsigned long *)res->start; cpustate.clr_addr = (unsigned long *)res->end - 1; -- cgit v1.2.3