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

[Fam Zheng <famz@redhat.com>]

On Wed, 07/06 11:03, Cao jin wrote:
> 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.

This "also" is not good, please only do one thing in a patch.

Fam

> 
> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
> ---
>  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
> 
> 
> 
>