Some info-querying code still used hw.resolution directly instead of calling snd_timer_hw_resolution(), thus missing a possible hw.c_resolution callback. This patch rectifies that.
Signed-off-by: Oswald Buddenhagen oswald.buddenhagen@gmx.de --- sound/core/timer.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/sound/core/timer.c b/sound/core/timer.c index e08a37c23add..9d0d2a5c2e15 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -1246,6 +1246,7 @@ static void snd_timer_proc_read(struct snd_info_entry *entry, { struct snd_timer *timer; struct snd_timer_instance *ti; + unsigned long resolution;
mutex_lock(®ister_mutex); list_for_each_entry(timer, &snd_timer_list, device_list) { @@ -1269,10 +1270,13 @@ static void snd_timer_proc_read(struct snd_info_entry *entry, timer->tmr_device, timer->tmr_subdevice); } snd_iprintf(buffer, "%s :", timer->name); - if (timer->hw.resolution) + spin_lock_irq(&timer->lock); + resolution = snd_timer_hw_resolution(timer); + spin_unlock_irq(&timer->lock); + if (resolution) snd_iprintf(buffer, " %lu.%03luus (%lu ticks)", - timer->hw.resolution / 1000, - timer->hw.resolution % 1000, + resolution / 1000, + resolution % 1000, timer->hw.ticks); if (timer->hw.flags & SNDRV_TIMER_HW_SLAVE) snd_iprintf(buffer, " SLAVE"); @@ -1662,7 +1666,9 @@ static int snd_timer_user_ginfo(struct file *file, ginfo->flags |= SNDRV_TIMER_FLG_SLAVE; strscpy(ginfo->id, t->id, sizeof(ginfo->id)); strscpy(ginfo->name, t->name, sizeof(ginfo->name)); - ginfo->resolution = t->hw.resolution; + spin_lock_irq(&t->lock); + ginfo->resolution = snd_timer_hw_resolution(t); + spin_unlock_irq(&t->lock); if (t->hw.resolution_min > 0) { ginfo->resolution_min = t->hw.resolution_min; ginfo->resolution_max = t->hw.resolution_max; @@ -1817,7 +1823,9 @@ static int snd_timer_user_info(struct file *file, info->flags |= SNDRV_TIMER_FLG_SLAVE; strscpy(info->id, t->id, sizeof(info->id)); strscpy(info->name, t->name, sizeof(info->name)); - info->resolution = t->hw.resolution; + spin_lock_irq(&t->lock); + info->resolution = snd_timer_hw_resolution(t); + spin_unlock_irq(&t->lock); if (copy_to_user(_info, info, sizeof(*_info))) err = -EFAULT; kfree(info);