tracing/synthetic: Print out u64 values properly

The synth traces incorrectly print pointer to the synthetic event values
instead of the actual value when using u64 type. Fix by addressing the
contents of the union properly.

Link: https://lore.kernel.org/linux-trace-kernel/[email protected]

Fixes: ddeea49 ("tracing/synthetic: Use union instead of casts")
Cc: [email protected]
Signed-off-by: Tero Kristo <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: Tero Kristo

kernel/trace/trace_events_synth.c

@@ -337,7 +337,7 @@ static void print_synth_event_num_val(struct trace_seq *s,
 		break;
 
 	default:
-		trace_seq_printf(s, print_fmt, name, val, space);
+		trace_seq_printf(s, print_fmt, name, val->as_u64, space);
 		break;
 	}
 }