examples/l3fwd-power: fix early shutdown

[ upstream commit 19781e7 ]

Currently, EAL init cannot be interrupted with SIGINT because the
signal handler is already overridden by the time EAL init happens.

Fix it by moving signal handler installation to after EAL
initialization, to allow SIGNIT to interrupt EAL initialization.

Fixes: d7937e2 ("power: initial import")
Fixes: 613ce66 ("examples/l3fwd-power: implement proper shutdown")

Signed-off-by: Harneet Singh <harneet.singh@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

examples/l3fwd-power/main.c

@@ -2216,16 +2216,16 @@ main(int argc, char **argv)
 	uint8_t num_telstats = RTE_DIM(telstats_strings);
 	const char *ptr_strings[num_telstats];
 
-	/* catch SIGINT and restore cpufreq governor to ondemand */
-	signal(SIGINT, signal_exit_now);
-
 	/* init EAL */
 	ret = rte_eal_init(argc, argv);
 	if (ret < 0)
 		rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
 	argc -= ret;
 	argv += ret;
 
+	/* catch SIGINT and restore cpufreq governor to ondemand */
+	signal(SIGINT, signal_exit_now);
+
 	/* init RTE timer library to be used late */
 	rte_timer_subsystem_init();