[Qemu-devel] [PATCH] main-loop: check return value before using

[Cao jin]

pointer 'qemu_aio_context' should be checked first before it is used.
qemu_bh_new() will use it.

Also add extra newlines to make code well separated and easier to read.

Signed-off-by: Cao jin <address@hidden>
---
 main-loop.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/main-loop.c b/main-loop.c
index 89a6994..0d943f1 100644
--- a/main-loop.c
+++ b/main-loop.c
@@ -154,18 +154,23 @@ int qemu_init_main_loop(Error **errp)
     }
 
     qemu_aio_context = aio_context_new(&local_error);
-    qemu_notify_bh = qemu_bh_new(notify_event_cb, NULL);
     if (!qemu_aio_context) {
         error_propagate(errp, local_error);
         return -EMFILE;
     }
+
+    qemu_notify_bh = qemu_bh_new(notify_event_cb, NULL);
+
     gpollfds = g_array_new(FALSE, FALSE, sizeof(GPollFD));
+
     src = aio_get_g_source(qemu_aio_context);
     g_source_attach(src, NULL);
     g_source_unref(src);
+
     src = iohandler_get_g_source();
     g_source_attach(src, NULL);
     g_source_unref(src);
+
     return 0;
 }
 
-- 
2.1.0