As pointed out by Philipp Thomas <[email protected]>:

Currently opensm will silently fail if you pass '-g 0 -B'. As you can't
ask for a port, exit with failure so admin can see the reason
for opensm's failure.

Signed-off-by: Hal Rosenstock <[email protected]>
---
diff --git a/opensm/main.c b/opensm/main.c
index 4218cc6..fca209a 100644
--- a/opensm/main.c
+++ b/opensm/main.c
@@ -1120,8 +1120,14 @@ int main(int argc, char *argv[])
 
        block_signals();
 
-       if (opt.daemon)
+       if (opt.daemon) {
+               if (INVALID_GUID == opt.guid) {
+                       fprintf(stderr,
+                               "ERROR: Invalid GUID specified; exiting because 
of daemon mode\n");
+                       return -1;
+               }
                daemonize(&osm);
+       }
 
        complib_init();
 
--
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