[ALSA] via82xx: tweak VT8251 workaround

Move the workaround for the VT8251 up a bit, and check for STAT_EOL
rather than STAT_ACTIVE. This resolves issues some people were having
with certain ALSA clients (and allows the STAT_ACTIVE check to do what
it was intended to do).
This change was suggested by Andrew Daviel.

Signed-off-by: Bastiaan Jacques <b.jacques@planet.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 9 deletions

diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 1b740dd4825..f7a22aa65a5 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -863,16 +863,14 @@ static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *subst
         if (!status)
                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
 
+        /* An apparent bug in the 8251 is worked around by sending a 
+         * REG_CTRL_START. */
+        if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
+                snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
+
         if (!(status & VIA_REG_STAT_ACTIVE)) {
-                /* An apparent bug in the 8251 is worked around by sending
-                 * a REG_CTRL_START. */
-                if (chip->revision == VIA_REV_8251)
-                        snd_via82xx_pcm_trigger(substream,
-                                                SNDRV_PCM_TRIGGER_START);
-                else {
-                        res = 0;
-                        goto unlock;
-                }
+                res = 0;
+                goto unlock;
         }
         if (count & 0xffffff) {
                 idx = count >> 24;