116  * Open a collection. The type/usage is pushed on the stack.
121 	struct hid_collection *collection;  in open_collection()  local
143 		collection = kmalloc(  in open_collection()
148 		if (collection == NULL) {  in open_collection()
149 			hid_err(parser->device, "failed to reallocate collection array\n");  in open_collection()
152 		memcpy(collection, parser->device->collection,  in open_collection()
155 		memset(collection + parser->device->collection_size, 0,  in open_collection()
158 		kfree(parser->device->collection);  in open_collection()
159 		parser->device->collection = collection;  in open_collection()
167 	collection = parser->device->collection + collection_index;  in open_collection()
168 	collection->type = type;  in open_collection()
169 	collection->usage = usage;  in open_collection()
170 	collection->level = parser->collection_stack_ptr - 1;  in open_collection()
171 	collection->parent_idx = (collection->level == 0) ? -1 :  in open_collection()
172 		parser->collection_stack[collection->level - 1];  in open_collection()
181  * Close a collection.
187 		hid_err(parser->device, "collection stack underflow\n");  in close_collection()
195  * Climb up the stack, search for the specified collection type
201 	struct hid_collection *collection = parser->device->collection;  in hid_lookup_collection()  local
206 		if (collection[index].type == type)  in hid_lookup_collection()
207 			return collection[index].usage;  in hid_lookup_collection()
692 	kfree(device->collection);  in hid_close_report()
693 	device->collection = NULL;  in hid_close_report()
1071 	struct hid_collection *collection;  in hid_apply_multiplier_to_field()  local
1078 	 * Otherwise, it is the Logical Collection the multiplier applies to  in hid_apply_multiplier_to_field()
1079 	 * but our field may be in a subcollection of that collection.  in hid_apply_multiplier_to_field()
1084 		collection = &hid->collection[usage->collection_index];  in hid_apply_multiplier_to_field()
1085 		while (collection->parent_idx != -1 &&  in hid_apply_multiplier_to_field()
1086 		       collection != multiplier_collection)  in hid_apply_multiplier_to_field()
1087 			collection = &hid->collection[collection->parent_idx];  in hid_apply_multiplier_to_field()
1089 		if (collection->parent_idx != -1 ||  in hid_apply_multiplier_to_field()
1108 	 * Logical Collection as the control(s) to which it is to be applied.  in hid_apply_multiplier()
1111 	 * Logical Collection, the Resolution Multiplier is associated with  in hid_apply_multiplier()
1112 	 * all controls in the collection. If no Logical Collection is  in hid_apply_multiplier()
1117 	 * Thus, search from the current collection upwards until we find a  in hid_apply_multiplier()
1118 	 * logical collection. Then search all fields for that same parent  in hid_apply_multiplier()
1119 	 * collection. Those are the fields the multiplier applies to.  in hid_apply_multiplier()
1124 	multiplier_collection = &hid->collection[multiplier->usage->collection_index];  in hid_apply_multiplier()
1127 		multiplier_collection = &hid->collection[multiplier_collection->parent_idx];  in hid_apply_multiplier()
1257 	device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,  in hid_open_report()
1259 	if (!device->collection) {  in hid_open_report()
1265 		device->collection[i].parent_idx = -1;  in hid_open_report()
1285 				hid_err(device, "unbalanced collection at end of report description\n");  in hid_open_report()
2233 		struct hid_collection *col = &hdev->collection[i];  in hid_connect()