realtime/librttest: get_numcpus() fix leak

As pointed out on the mailing list this function has a memory leak, fixing it. Link: https://lore.kernel.org/ltp/[email protected]/ Fixes: 591c56b ("realtime/prio-preempt: take cpu isolation into consideration") Reviewed-by: Petr Vorel <[email protected]> Reviewed-by: Cyril Hrubis <[email protected]> Signed-off-by: Attila Fazekas <[email protected]>
linux-test-project · Jan 23, 2025 · 1edca67 · 1edca67
1 parent 23277aa
commit 1edca67
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/testcases/realtime/lib/librttest.c b/testcases/realtime/lib/librttest.c
@@ -768,11 +768,13 @@ int get_numcpus(void)
 {
 	long numcpus_conf = sysconf(_SC_NPROCESSORS_CONF);
 	size_t size = CPU_ALLOC_SIZE(numcpus_conf);
+	int cpu_count;
 	cpu_set_t *cpuset = CPU_ALLOC(numcpus_conf);
 
 	CPU_ZERO_S(size, cpuset);
 	/* Get the number of cpus accessible to the current process */
 	sched_getaffinity(0, size, cpuset);
-
-	return CPU_COUNT_S(size, cpuset);
+	cpu_count = CPU_COUNT_S(size, cpuset);
+	CPU_FREE(cpuset);
+	return cpu_count;
 }