diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 86b7155..d4c1906 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -178,10 +178,14 @@
 
 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 {
+	struct hid_collection *collection = parser->device->collection;
 	int n;
-	for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
-		if (parser->device->collection[parser->collection_stack[n]].type == type)
-			return parser->device->collection[parser->collection_stack[n]].usage;
+
+	for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
+		unsigned index = parser->collection_stack[n];
+		if (collection[index].type == type)
+			return collection[index].usage;
+	}
 	return 0; /* we know nothing about this usage type */
 }