Re: [spice-gtk v2] smartcard: Warn if multiple readers are detected

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> 
> spice-server does not deal properly with multiple smartcard readers,
> only the first one will be working. Add a warning when this happens to
> make it easier to diagnose such issues.
> 
> Signed-off-by: Christophe Fergeau <cfergeau@xxxxxxxxxx>
> ---
> 
> Alternate version using g_list_length rather than manually counting the
> elements.
> 
>  src/smartcard-manager.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/src/smartcard-manager.c b/src/smartcard-manager.c
> index ceecfdc7..144caf9b 100644
> --- a/src/smartcard-manager.c
> +++ b/src/smartcard-manager.c
> @@ -389,6 +389,24 @@ typedef struct {
>      GError *err;
>  } SmartcardManagerInitArgs;
>  
> +
> +static void unref_smartcard_reader(gpointer data)

We usually use verbs after the name, like smartcard_reader_unref.

> +{
> +    g_boxed_free(SPICE_TYPE_SMARTCARD_READER, data);
> +}
> +
> +/* spice-server only supports one smartcard reader being in use */
> +static void smartcard_check_reader_count(void)
> +{
> +    GList *readers;
> +
> +    readers =
> spice_smartcard_manager_get_readers(spice_smartcard_manager_get());
> +    if (g_list_length(readers) > 1) {
> +        g_warning("Multiple smartcard readers are plugged in, only the first
> one will be shared with the VM");
> +    }
> +    g_list_free_full(readers, unref_smartcard_reader);
> +}
> +
>  static gboolean smartcard_manager_init(SmartcardManagerInitArgs *args)
>  {
>      gchar *emul_args = NULL;
> @@ -442,6 +460,7 @@ init:
>                                  "Failed to initialize smartcard");
>          goto end;
>      }
> +    smartcard_check_reader_count();
>  
>      retval = TRUE;
>  

I think the ack from Marc-andre is still valid, nothing against it.

Frediano
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