* Patch by Andreas Oberritter, 09 Nov 2002:
  Change behaviour of NetLoop(): return -1 for errors, filesize
  otherwise; return code 0 is valid an means no file loaded - in this
  case the environment still gets updated!

* Patches by Jon Diekema, 9 Nov 2002:
  - improve ADC/DAC clocking on the SACSng board to align
    the failing edges of LRCLK and SCLK
  - sbc8260 configuration tweaks
  - add status LED support for 82xx systems
  - wire sspi/sspo commands into command handler; improved error
    handlering
  - add timestamp support and alternate memory test to the
    SACSng configuration
diff --git a/common/cmd_net.c b/common/cmd_net.c
index c9ce85f..a1ff2ba 100644
--- a/common/cmd_net.c
+++ b/common/cmd_net.c
@@ -132,12 +132,16 @@
 		return 1;
 	}
 
-	if ((size = NetLoop(proto)) == 0)
+	if ((size = NetLoop(proto)) < 0)
 		return 1;
 
 	/* NetLoop ok, update environment */
 	netboot_update_env();
 
+	/* done if no file was loaded (no errors though) */
+	if (size == 0)
+		return 0;
+
 	/* flush cache */
 	flush_cache(load_addr, size);