ALSA: pcm - Fix a typo in hw_ptr update check

Fix a typo in the commit 13f040f9e55d41e92e485389123654971e03b819
  ALSA: PCM midlevel: Do not update hw_ptr_jiffies when hw_ptr is not changed
which causes obvious problems with PA.

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

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index dd9126b..bf34603 100644 (file)
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -371,7 +371,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
            runtime->silence_size > 0)
                snd_pcm_playback_silence(substream, new_hw_ptr);
 
-       if (runtime->status->hw_ptr != new_hw_ptr)
+       if (runtime->status->hw_ptr == new_hw_ptr)
                return 0;
 
        runtime->hw_ptr_base = hw_base;