1 files changed, 15 insertions, 2 deletions

diff --git a/sound/firewire/oxfw/oxfw-pcm.c b/sound/firewire/oxfw/oxfw-pcm.c
index f3e25898d270..ba586d1ac91d 100644
--- a/sound/firewire/oxfw/oxfw-pcm.c
+++ b/sound/firewire/oxfw/oxfw-pcm.c
@@ -188,6 +188,7 @@ static int pcm_open(struct snd_pcm_substream *substream)
 	// at current one.
 	if (oxfw->substreams_count > 0 && d->events_per_period > 0) {
 		unsigned int frames_per_period = d->events_per_period;
+		unsigned int frames_per_buffer = d->events_per_buffer;
 
 		err = limit_to_current_params(substream);
 		if (err < 0) {
@@ -203,6 +204,14 @@ static int pcm_open(struct snd_pcm_substream *substream)
 				mutex_unlock(&oxfw->mutex);
 				goto err_locked;
 			}
+
+			err = snd_pcm_hw_constraint_minmax(substream->runtime,
+					SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+					frames_per_buffer, frames_per_buffer);
+			if (err < 0) {
+				mutex_unlock(&oxfw->mutex);
+				goto err_locked;
+			}
 		}
 	}
 
@@ -239,10 +248,12 @@ static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
 		unsigned int rate = params_rate(hw_params);
 		unsigned int channels = params_channels(hw_params);
 		unsigned int frames_per_period = params_period_size(hw_params);
+		unsigned int frames_per_buffer = params_buffer_size(hw_params);
 
 		mutex_lock(&oxfw->mutex);
 		err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->tx_stream,
-					rate, channels, frames_per_period);
+					rate, channels, frames_per_period,
+					frames_per_buffer);
 		if (err >= 0)
 			++oxfw->substreams_count;
 		mutex_unlock(&oxfw->mutex);
@@ -265,10 +276,12 @@ static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
 		unsigned int rate = params_rate(hw_params);
 		unsigned int channels = params_channels(hw_params);
 		unsigned int frames_per_period = params_period_size(hw_params);
+		unsigned int frames_per_buffer = params_buffer_size(hw_params);
 
 		mutex_lock(&oxfw->mutex);
 		err = snd_oxfw_stream_reserve_duplex(oxfw, &oxfw->rx_stream,
-					rate, channels, frames_per_period);
+					rate, channels, frames_per_period,
+					frames_per_buffer);
 		if (err >= 0)
 			++oxfw->substreams_count;
 		mutex_unlock(&oxfw->mutex);