Help with Creative's X-Fi drivers

[James Pearson <james-p@moving-picture.com>]

I know the ALSA team don't support Creative's X-Fi drivers, but maybe 
someone could help with this issue:

I've managed to 'backport' Creative's recently GPL'd drivers to run on a 
CentOS4 kernel with ALSA 1.0.15 - the changes to the code were minor, 
but one thing I'm not sure about is, in ctpcm.c it has:

static int ct_pcm_timer_stop(struct ct_atc_pcm *apcm)
{
         unsigned long flags;

         CTDPF("%s is called\n", __func__);

         spin_lock_irqsave(&apcm->timer_lock, flags);
         apcm->stop_timer = 1;
         del_timer(&apcm->timer);
         spin_unlock_irqrestore(&apcm->timer_lock, flags);

         try_to_del_timer_sync(&apcm->timer);

         return 0;
}


The CentOS4/RHEL4 2.6.9 kernel doesn't have try_to_del_timer_sync() - 
so, should I replace it with del_timer() or del_timer_sync() ?

I'm currently using del_timer_sync() - and the driver works (I get sound 
out the head phone jack) - is this OK?

Thanks

James Pearson