ALSA: hda - Judge playback stream from stream id in azx_via_get_position()

Instead of checking the azx_dev index with a fixed number (4), check
the stream direction of the assigned substream.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 45cd02f1ad88..5f2d05a8d0eb 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1866,7 +1866,7 @@ static unsigned int azx_via_get_position(struct azx *chip,
         unsigned int fifo_size;
 
         link_pos = azx_sd_readl(azx_dev, SD_LPIB);
-        if (azx_dev->index >= 4) {
+        if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                 /* Playback, no problem using link position */
                 return link_pos;
         }