Don't assert or re-throw exception caught at top level

Instead, return error and let caller deal with it.

Change-Id: I1a55337134b00aa4259af27281b2450fc2252be9


[ROCm/amdsmi commit: d54a9484be]

projects/amdsmi/src/rocm_smi.cc

@@ -81,16 +81,13 @@ static rsmi_status_t handleException() {
     debug_print("Exception caught: %s.\n", e.what());
     return e.error_code();
   } catch (const std::exception& e) {
-    debug_print("Unhandled exception: %s\n", e.what());
-    assert(false && "Unhandled exception.");
+    debug_print("Exception caught: %s\n", e.what());
     return RSMI_STATUS_INTERNAL_EXCEPTION;
   } catch (const std::nested_exception& e) {
-    debug_print("Callback threw, forwarding.\n");
-    e.rethrow_nested();
+    debug_print("Callback threw.\n");
     return RSMI_STATUS_INTERNAL_EXCEPTION;
   } catch (...) {
-    assert(false && "Unhandled exception.");
-    abort();
+    debug_print("Unknown exception caught.\n");
     return RSMI_STATUS_INTERNAL_EXCEPTION;
   }
 }