test-throttle: Simplify qemu_init_main_loop() error handling

The code looks like it tries to check for both qemu_init_main_loop()
and qemu_get_aio_context() failure in one conditional.  In fact,
qemu_get_aio_context() can fail only after qemu_init_main_loop()
failed.

Simplify accordingly: check for qemu_init_main_loop() error directly,
without bothering to improve its error message.  Call
qemu_get_aio_context() only when qemu_get_aio_context() succeeded.  It
can't fail then, so no need to check.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1450452927-8346-9-git-send-email-armbru@redhat.com>

1 files changed, 1 insertions, 14 deletions

diff --git a/tests/test-throttle.c b/tests/test-throttle.c
index 85c9b6c..a95039f 100644
--- a/tests/test-throttle.c
+++ b/tests/test-throttle.c
@@ -581,21 +581,8 @@ static void test_groups(void)
 
 int main(int argc, char **argv)
 {
-    Error *local_error = NULL;
-
-    qemu_init_main_loop(&local_error);
+    qemu_init_main_loop(&error_fatal);
     ctx = qemu_get_aio_context();
-
-    if (!ctx) {
-        error_report("Failed to create AIO Context: '%s'",
-                     local_error ? error_get_pretty(local_error) :
-                     "Failed to initialize the QEMU main loop");
-        if (local_error) {
-            error_free(local_error);
-        }
-        exit(1);
-    }
-
     bdrv_init();
 
     do {} while (g_main_context_iteration(NULL, false));