On Wed, Nov 30, 2016 at 06:36:33PM +0100, Victor Toso wrote:
> From: Victor Toso <m...@victortoso.com>
> 
> Similar fix was done in 5b252b0f499601bcf387c02a4dd35d27ed34c
> 
> We should log a critical message instead of crashing the application.

I think the log should be more detailed than in the previous iteration,
not less. It's much better to explain why this is a correct fix, and not
papering over another bug (priv->host being NULL when it really should
not). This could be just quoting some parts of
5b252b0f499601bcf387c02a4dd35d27ed34c if relevant, or describing a
scenario where the crash could occur on startup.

The way it is now, it looks more like "ok, NULL pointer here for
unknown reasons, let's avoid the crash"

Christophe

> Signed-off-by: Victor Toso <victort...@redhat.com>
> ---
>  src/channel-usbredir.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/src/channel-usbredir.c b/src/channel-usbredir.c
> index 4837d68..392a35e 100644
> --- a/src/channel-usbredir.c
> +++ b/src/channel-usbredir.c
> @@ -817,6 +817,8 @@ static void spice_usbredir_channel_up(SpiceChannel *c)
>      SpiceUsbredirChannel *channel = SPICE_USBREDIR_CHANNEL(c);
>      SpiceUsbredirChannelPrivate *priv = channel->priv;
>  
> +    g_return_if_fail(priv->host != NULL);
> +
>      /* Flush any pending writes */
>      usbredirhost_write_guest_data(priv->host);
>  }
> -- 
> 2.9.3
> 
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