ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt

The stack object “r1” has a total size of 32 bytes. Its field
“event” and “val” both contain 4 bytes padding. These 8 bytes
padding bytes are sent to user without being initialized.

Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer)
{
	struct snd_timer_id tid;

	tid.dev_class = SNDRV_TIMER_CLASS_GLOBAL;
	tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
	tid.card = -1;
	tid.device = device;
	tid.subdevice = 0;
	return snd_timer_new(NULL, id, &tid, rtimer);
}

int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer)
{
	struct snd_timer_id tid;

	tid.dev_class = SNDRV_TIMER_CLASS_GLOBAL;
	tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
	tid.card = -1;
	tid.device = device;
	tid.subdevice = 0;
	return snd_timer_new(NULL, id, &tid, rtimer);
}
