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 <peter.ujfalusi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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 <peter.ujfalusi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Ujfalusi · Greg Kroah-Hartman
1 parent 45f035ab9b
Showing 1 changed file with 3 additions and 0 deletions Side-by-side Diff
drivers/base/platform.c
@@ -103,6 +103,9 @@
 	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;
 	}
...	...	@@ -103,6 +103,9 @@
103	103	for (i = 0; i < dev->num_resources; i++) {
104	104	struct resource *r = &dev->resource[i];
105	105
	106	+ if (unlikely(!r->name))
	107	+ continue;
	108	+
106	109	if (type == resource_type(r) && !strcmp(r->name, name))
107	110	return r;
108	111	}