Avoid type warning in comparison by making it explicit.

(The difference between two pointers is a "size_t", while
MAX_LEN and the result here are "int"s).

drivers/ide/ide-proc.c

@@ -508,7 +508,7 @@ int proc_ide_write_settings
 			}
 			if (*p != ':')
 				goto parse_error;
-			len = min(p - start, MAX_LEN);
+			len = min_t(int, p - start, MAX_LEN);
 			strncpy(name, start, min(len, MAX_LEN));
 			name[len] = 0;