291 	struct blk_major_name **n, *p;  in register_blkdev()  local
324 	for (n = &major_names[index]; *n; n = &(*n)->next) {  in register_blkdev()
325 		if ((*n)->major == major)  in register_blkdev()
328 	if (!*n)  in register_blkdev()
329 		*n = p;  in register_blkdev()
347 	struct blk_major_name **n;  in unregister_blkdev()  local
352 	for (n = &major_names[index]; *n; n = &(*n)->next)  in unregister_blkdev()
353 		if ((*n)->major == major)  in unregister_blkdev()
355 	if (!*n || strcmp((*n)->name, name)) {  in unregister_blkdev()
358 		p = *n;  in unregister_blkdev()
359 		*n = p->next;  in unregister_blkdev()