pm: cpupower: Fix cmd_monitor() error legs to free cpu_topology

cmd_monitor() calls get_cpu_topology() to allocate memory for
cpu topology and fails to release in error legs.

Fix it to call cpu_topology_release() from error legs.

Link: https://lore.kernel.org/r/20250305225342.19447-2-skhan@linuxfoundation.org
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Author: shuahkh

tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c

@@ -427,11 +427,13 @@ int cmd_monitor(int argc, char **argv)
 
 	if (avail_monitors == 0) {
 		printf(_("No HW Cstate monitors found\n"));
+		cpu_topology_release(cpu_top);
 		return 1;
 	}
 
 	if (mode == list) {
 		list_monitors();
+		cpu_topology_release(cpu_top);
 		exit(EXIT_SUCCESS);
 	}