Re: [spice-gtk] vmcstream, gtask: Fix crash when trying to use webdav

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Ack. 

Pavel

On Mon, 2016-03-21 at 16:02 +0100, Fabiano Fidêncio wrote:
> Don't try to get the cancellable from a task that is, for sure
> (ensured
> by us), NULL. See the backtrace:
> 
>  #0  0x00007ffff29cf250 in g_task_get_cancellable () at
> /lib64/libgio-2.0.so.0
>  #1  0x00007ffff78a9012 in spice_vmc_input_stream_read_all_async
> (stream=<optimized out>, buffer=0x7070f8, count=8,
> io_priority=<optimized out>, cancellable=0x7fffcc00a470,
> callback=0x7ffff788c190 <client_read_cb>, user_data=0x707b30) at
> vmcstream.c:187
>  #2  0x00007ffff788c0ab in start_demux (self=0x707b30) at channel-
> webdav.c:498
>  #3  0x00007ffff2700578 in g_closure_invoke () at /lib64/libgobject-
> 2.0.so.0
>  #4  0x00007ffff27135f0 in signal_emit_unlocked_R () at
> /lib64/libgobject-2.0.so.0
>  #5  0x00007ffff271c43c in g_signal_emit_valist () at
> /lib64/libgobject-2.0.so.0
>  #6  0x00007ffff788acca in emit_main_context (opaque=0x7fffbfffe880)
> at gio-coroutine.c:200
>  #7  0x00007ffff242bab3 in g_main_context_dispatch () at
> /lib64/libglib-2.0.so.0
>  #8  0x00007ffff242be60 in g_main_context_iterate.isra () at
> /lib64/libglib-2.0.so.0
>  #9  0x00007ffff242c182 in g_main_loop_run () at /lib64/libglib-
> 2.0.so.0
>  #10 0x0000000000405df6 in main (argc=<optimized out>,
> argv=<optimized out>) at spicy.c:1897
> 
> It was pointed out during the review and, somehow, missed :-\
> 
> Signed-off-by: Fabiano Fidêncio <fidencio@xxxxxxxxxx>
> Signed-off-by: Pavel Grunt <pgrunt@xxxxxxxxxx>
> ---
>  src/vmcstream.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/src/vmcstream.c b/src/vmcstream.c
> index 48f9513..8a31a47 100644
> --- a/src/vmcstream.c
> +++ b/src/vmcstream.c
> @@ -184,7 +184,6 @@
> spice_vmc_input_stream_read_all_async(GInputStream        *stream,
>  
>      /* no concurrent read permitted by ginputstream */
>      g_return_if_fail(self->task == NULL);
> -    g_return_if_fail(g_task_get_cancellable(self->task) == NULL);
>      self->all = TRUE;
>      self->buffer = buffer;
>      self->count = count;
> @@ -236,7 +235,6 @@
> spice_vmc_input_stream_read_async(GInputStream        *stream,
>  
>      /* no concurrent read permitted by ginputstream */
>      g_return_if_fail(self->task == NULL);
> -    g_return_if_fail(g_task_get_cancellable(self->task) == NULL);
>      self->all = FALSE;
>      self->buffer = buffer;
>      self->count = count;
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