Ignore resources with a size of 0, as these are disabled (and we don't

deal with them properly elsewhere).

Submitted by:	Masayuki FUKUI <fukui@sonic.nm.fujitsu.co.jp>

sys/isa/pnpparse.c

@@ -303,6 +303,13 @@ pnp_parse_resources(device_t dev, u_char *resources, int len, u_int32_t vendor_i
 				break;
 
 			case PNP_TAG_MEMORY32_RANGE:
+				if (I32(resinfo + 13) == 0) {
+					if (bootverbose) {
+						printf("%s: skipping empty range\n",
+						       pnp_eisaformat(id));
+					}
+					continue;
+				}
 				if (bootverbose) {
 					printf("%s: adding memory32 range "
 					       "%#x-%#x, size=%#x, "