sim: ppc: return register error when unhandled

We don't want to fallthru and use cooked_buf when we haven't initialized
it to anything.  Returning 0 indicates the register wasn't recognized.

diff --git a/sim/ppc/psim.c b/sim/ppc/psim.c
index a08d38914eaf1162683f948b69bf0723431a9448..645e29a636d61acac34392c3e04b0155d11e9e86 100644 (file)
--- a/sim/ppc/psim.c
+++ b/sim/ppc/psim.c
@@ -889,8 +889,7 @@ psim_read_register(psim *system,
   default:
     printf_filtered("psim_read_register(processor=%p,buf=%p,reg=%s) %s\n",
                    processor, buf, reg, "read of this register unimplemented");
-    break;
-
+    return 0;
   }
 
   /* the PSIM internal values are in host order.  To fetch raw data,
@@ -1077,8 +1076,7 @@ psim_write_register(psim *system,
     printf_filtered("psim_write_register(processor=%p,cooked_buf=%p,reg=%s) %s\n",
                    processor, cooked_buf, reg,
                    "read of this register unimplemented");
-    break;
-
+    return 0;
   }
 
   return description.size;