Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (36 commits)
  ALSA: hda - Add VREF powerdown sequence for another board
  ALSA: oss - volume control for CSWITCH and CROUTE
  ALSA: hda - add missing comma in ad1884_slave_vols
  sound: usb-audio: allow period sizes less than 1 ms
  sound: usb-audio: save data packet interval in audioformat structure
  sound: usb-audio: remove check_hw_params_convention()
  sound: usb-audio: show sample format width in proc file
  ASoC: fsl_dma: Pass the proper device for dma mapping routines
  ASoC: Fix null dereference in ak4535_remove()
  ALSA: hda - enable SPDIF output for Intel DX58SO board
  ALSA: snd-atmel-abdac: increase periods_min to 6 instead of 4
  ALSA: snd-atmel-abdac: replace bus_id with dev_name()
  ALSA: snd-atmel-ac97c: replace bus_id with dev_name()
  ALSA: snd-atmel-ac97c: cleanup registers when removing driver
  ALSA: snd-atmel-ac97c: do a proper reset of the external codec
  ALSA: snd-atmel-ac97c: enable interrupts to catch events for error reporting
  ALSA: snd-atmel-ac97c: set correct size for buffer hardware parameter
  ALSA: snd-atmel-ac97c: do not overwrite OCA and ICA when assigning channels
  ALSA: snd-atmel-ac97c: remove dead break statements after return in switch case
  ALSA: snd-atmel-ac97c: cleanup register definitions
  ...

1 files changed, 23 insertions, 6 deletions

diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index b3eb8570cd7..b1a3a278819 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -300,7 +300,7 @@ static int fsl_dma_new(struct snd_card *card, struct snd_soc_dai *dai,
 	if (!card->dev->coherent_dma_mask)
 		card->dev->coherent_dma_mask = fsl_dma_dmamask;
 
-	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->dev,
+	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, card->dev,
 		fsl_dma_hardware.buffer_bytes_max,
 		&pcm->streams[0].substream->dma_buffer);
 	if (ret) {
@@ -310,7 +310,7 @@ static int fsl_dma_new(struct snd_card *card, struct snd_soc_dai *dai,
 		return -ENOMEM;
 	}
 
-	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->dev,
+	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, card->dev,
 		fsl_dma_hardware.buffer_bytes_max,
 		&pcm->streams[1].substream->dma_buffer);
 	if (ret) {
@@ -418,7 +418,7 @@ static int fsl_dma_open(struct snd_pcm_substream *substream)
 		return -EBUSY;
 	}
 
-	dma_private = dma_alloc_coherent(substream->pcm->dev,
+	dma_private = dma_alloc_coherent(substream->pcm->card->dev,
 		sizeof(struct fsl_dma_private), &ld_buf_phys, GFP_KERNEL);
 	if (!dma_private) {
 		dev_err(substream->pcm->card->dev,
@@ -445,7 +445,7 @@ static int fsl_dma_open(struct snd_pcm_substream *substream)
 		dev_err(substream->pcm->card->dev,
 			"can't register ISR for IRQ %u (ret=%i)\n",
 			dma_private->irq, ret);
-		dma_free_coherent(substream->pcm->dev,
+		dma_free_coherent(substream->pcm->card->dev,
 			sizeof(struct fsl_dma_private),
 			dma_private, dma_private->ld_buf_phys);
 		return ret;
@@ -697,6 +697,23 @@ static snd_pcm_uframes_t fsl_dma_pointer(struct snd_pcm_substream *substream)
 	else
 		position = in_be32(&dma_channel->dar);
 
+	/*
+	 * When capture is started, the SSI immediately starts to fill its FIFO.
+	 * This means that the DMA controller is not started until the FIFO is
+	 * full.  However, ALSA calls this function before that happens, when
+	 * MR.DAR is still zero.  In this case, just return zero to indicate
+	 * that nothing has been received yet.
+	 */
+	if (!position)
+		return 0;
+
+	if ((position < dma_private->dma_buf_phys) ||
+	    (position > dma_private->dma_buf_end)) {
+		dev_err(substream->pcm->card->dev,
+			"dma pointer is out of range, halting stream\n");
+		return SNDRV_PCM_POS_XRUN;
+	}
+
 	frames = bytes_to_frames(runtime, position - dma_private->dma_buf_phys);
 
 	/*
@@ -761,13 +778,13 @@ static int fsl_dma_close(struct snd_pcm_substream *substream)
 			free_irq(dma_private->irq, dma_private);
 
 		if (dma_private->ld_buf_phys) {
-			dma_unmap_single(substream->pcm->dev,
+			dma_unmap_single(substream->pcm->card->dev,
 				dma_private->ld_buf_phys,
 				sizeof(dma_private->link), DMA_TO_DEVICE);
 		}
 
 		/* Deallocate the fsl_dma_private structure */
-		dma_free_coherent(substream->pcm->dev,
+		dma_free_coherent(substream->pcm->card->dev,
 			sizeof(struct fsl_dma_private),
 			dma_private, dma_private->ld_buf_phys);
 		substream->runtime->private_data = NULL;