[PATCH v1 RFC liburing 4/6] test/cq-size: Don't use `errno` to check liburing's functions

[Ammar Faizi <ammar.faizi@students.amikom.ac.id>]

When we build liburing without libc, we can't check `errno` variable
with respect to liburing's functions. Don't do that it in test.

Note:
The tests themselves can still use `errno` to check error from
functions that come from the libc, but not liburing.

Cc: Bedirhan KURT <windowz414@gnuweeb.org>
Cc: Louvian Lyndal <louvianlyndal@gmail.com>
Link: https://github.com/axboe/liburing/issues/443
Fixes: https://github.com/axboe/liburing/issues/449
Signed-off-by: Ammar Faizi <ammar.faizi@students.amikom.ac.id>
---
 test/cq-size.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/test/cq-size.c b/test/cq-size.c
index b7dd5b4..4e6e3d1 100644
--- a/test/cq-size.c
+++ b/test/cq-size.c
@@ -45,14 +45,20 @@ int main(int argc, char *argv[])
 	p.cq_entries = 0;
 
 	ret = io_uring_queue_init_params(4, &ring, &p);
-	if (ret >= 0 || errno != EINVAL) {
+	if (ret >= 0) {
 		printf("zero sized cq ring succeeded\n");
+		io_uring_queue_exit(&ring);
+		goto err;
+	}
+
+	if (ret != -EINVAL) {
+		printf("io_uring_queue_init_params failed, but not with -EINVAL"
+		       ", returned error %d (%s)\n", ret, strerror(-ret));
 		goto err;
 	}
 
 done:
 	return 0;
 err:
-	io_uring_queue_exit(&ring);
 	return 1;
 }
-- 
2.30.2