ALSA: pcm: Use the common error path in __snd_pcm_lib_xfer()

An open-coded error path in __snd_pcm_lib_xfer() can be replaced with
the simple goto to the common error path.  This also makes the error
handling more consistent, i.e. when some samples have been already
processed, return that size instead of the error code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-01-25 17:31:59 +01:00
parent 2dee43ec3f
commit 315d9f1bee

View File

@ -2219,9 +2219,8 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream,
if (frames > cont)
frames = cont;
if (snd_BUG_ON(!frames)) {
runtime->twake = 0;
snd_pcm_stream_unlock_irq(substream);
return -EINVAL;
err = -EINVAL;
goto _end_unlock;
}
snd_pcm_stream_unlock_irq(substream);
err = writer(substream, appl_ofs, data, offset, frames,