From: Peter Ujfalusi Date: Thu, 23 Aug 2012 14:10:00 +0000 (+0300) Subject: driver core: Check if r->name is valid in platform_get_resource_byname() X-Git-Tag: firefly_0821_release~3680^2~1978^2~31 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1b8cb9290671a4c025c16a51d316031f9ec04976;p=firefly-linux-kernel-4.4.55.git driver core: Check if r->name is valid in platform_get_resource_byname() Safety check for the validity of the resource name before calling strcmp(). If the resource name is NULL do not compare it, just skip it. Signed-off-by: Peter Ujfalusi Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 3f8077ce585c..ddeca142293c 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -103,6 +103,9 @@ struct resource *platform_get_resource_byname(struct platform_device *dev, for (i = 0; i < dev->num_resources; i++) { struct resource *r = &dev->resource[i]; + if (unlikely(!r->name)) + continue; + if (type == resource_type(r) && !strcmp(r->name, name)) return r; }