Fix errors in partial reads/writes with rate plugin

Fix errors in partial reads/writes (e.g. draining) with rate plugin.

diff --git a/src/pcm/pcm_rate.c b/src/pcm/pcm_rate.c
index 95f43dfba0f2df999fcf36d8330d8fb902e3e38a..423ef24cf917649144ac7bec7add63d8068427e1 100644 (file)
--- a/src/pcm/pcm_rate.c
+++ b/src/pcm/pcm_rate.c
@@ -1060,10 +1060,12 @@ static int snd_pcm_rate_commit_area(snd_pcm_t *pcm, snd_pcm_rate_t *rate,
                result = snd_pcm_mmap_begin(rate->gen.slave, &slave_areas, &slave_offset, &slave_frames);
                if (result < 0)
                        return result;
+#if 0
                if (slave_offset) {
                        SNDERR("non-zero slave_offset %ld", slave_offset);
                        return -EIO;
                }
+#endif
                snd_pcm_areas_copy(slave_areas, slave_offset,
                                   rate->sareas, xfer,
                                   pcm->channels, cont,
@@ -1151,10 +1153,12 @@ static int snd_pcm_rate_grab_next_period(snd_pcm_t *pcm, snd_pcm_uframes_t hw_of
                result = snd_pcm_mmap_begin(rate->gen.slave, &slave_areas, &slave_offset, &slave_frames);
                if (result < 0)
                        return result;
+#if 0
                if (slave_offset) {
                        SNDERR("non-zero slave_offset %ld", slave_offset);
                        return -EIO;
                }
+#endif
                snd_pcm_areas_copy(rate->sareas, xfer,
                                   slave_areas, slave_offset,
                                   pcm->channels, cont,