[PATCH] tools: testing: selftests: mq_perf_tests: Fix infinite loop on ARM

[dann frazier]

We can't use a char type to check for a negative return value since char
isn't guaranteed to be signed. Indeed, the char type tends to be unsigned on
ARM.

Signed-off-by: dann frazier <dann.frazier@xxxxxxxxxxxxx>
---
 tools/testing/selftests/mqueue/mq_perf_tests.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c
index 94dae65..8519e9e 100644
--- a/tools/testing/selftests/mqueue/mq_perf_tests.c
+++ b/tools/testing/selftests/mqueue/mq_perf_tests.c
@@ -536,10 +536,9 @@ int main(int argc, char *argv[])
 {
 	struct mq_attr attr;
 	char *option, *next_option;
-	int i, cpu;
+	int i, cpu, rc;
 	struct sigaction sa;
 	poptContext popt_context;
-	char rc;
 	void *retval;
 
 	main_thread = pthread_self();
-- 
2.1.4

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