[PATCH 3/4] don't use exit(-1) for failures

[Luiz Capitulino <lcapitulino@redhat.com>]

The kernel uses only 8 bits of the status as a return
code, so this actually becomes 255 in the shell.

In any case, the most widely convension is exit(1)
for failures, so let's be consistent.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 src/pi_tests/pi_stress.c              | 2 +-
 src/pi_tests/pip_stress.c             | 6 +++---
 src/rt-migrate-test/rt-migrate-test.c | 8 ++++----
 src/signaltest/signaltest.c           | 2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/pi_tests/pi_stress.c b/src/pi_tests/pi_stress.c
index aaa36c3..574fb65 100644
--- a/src/pi_tests/pi_stress.c
+++ b/src/pi_tests/pi_stress.c
@@ -634,7 +634,7 @@ int verify_cpu(int cpu)
 	if (status == -1) {
 		err = errno;
 		fprintf(stderr, "sched_getaffinity %s\n", strerror(err));
-		exit(-1);
+		exit(1);
 	}
 
 	if (CPU_ISSET(cpu, &mask))
diff --git a/src/pi_tests/pip_stress.c b/src/pi_tests/pip_stress.c
index 812a703..bef1f92 100644
--- a/src/pi_tests/pip_stress.c
+++ b/src/pi_tests/pip_stress.c
@@ -95,7 +95,7 @@ int main(void)
 	*minimum_priority = sched_get_priority_min(policy);
 
 	if (check_privs())
-		exit(-1);
+		exit(1);
 
 	mptr = mmap_page();	/* Get a page of shared memory */
 	resource = (pthread_mutex_t*)mptr;	/* point our lock to it */
@@ -138,7 +138,7 @@ int main(void)
 		pid2 = fork();		/* parent code */
 		if (pid2 == -1) {
 			perror("fork: ");
-			exit(-1);
+			exit(1);
 		} else if (pid2 != 0) {		/* parent code */
 			high(pid2);
 		} else {			/* child code */
@@ -231,7 +231,7 @@ void *mmap_page(void)
 	mptr = mmap(NULL, pgsize, PROTRW, MMAP_FLAGS, 0, 0);
 	if (mptr == MAP_FAILED) {
 		perror("In function mmap_page - mmap");
-		exit(-1);
+		exit(1);
 	}
 
 	return mptr;
diff --git a/src/rt-migrate-test/rt-migrate-test.c b/src/rt-migrate-test/rt-migrate-test.c
index 6e8acc2..4a7ecbb 100644
--- a/src/rt-migrate-test/rt-migrate-test.c
+++ b/src/rt-migrate-test/rt-migrate-test.c
@@ -141,7 +141,7 @@ static void perr(char *fmt, ...)
 
 	perror(buffer);
 	fflush(stderr);
-	exit(-1);
+	exit(1);
 }
 
 static void print_progress_bar(int percent)
@@ -228,11 +228,11 @@ static void parse_options (int argc, char *argv[])
 	}
 	if (nr_runs <= 0) {
 		fprintf(stderr, "Error: --loops argument is non-positive.  Exiting.\n");
-		exit(-1);
+		exit(1);
 	}
 	if (prio_start < 1 || prio_start > 99) {
 		fprintf(stderr, "Error: invalid value for --prio: %d (valid: 1-99)\n", prio_start);
-		exit(-1);
+		exit(1);
 	}
 }
 
@@ -599,7 +599,7 @@ int main (int argc, char **argv)
 			exit(2);
 	}
 	if (check < 0)
-		exit(-1);
+		exit(1);
 	else
 		exit(0);
 
diff --git a/src/signaltest/signaltest.c b/src/signaltest/signaltest.c
index 9454a26..7eaceec 100644
--- a/src/signaltest/signaltest.c
+++ b/src/signaltest/signaltest.c
@@ -318,7 +318,7 @@ int main(int argc, char **argv)
 	int i, ret = -1;
 
 	if (check_privs())
-		exit(-1);
+		exit(1);
 
 	process_options(argc, argv);
 
-- 
2.1.0