Avoid overflow

diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c
index fd673feacfc435074737b62790521671c2820df9..a53cf4122f114ad93fb2b357bd575b8793f3a22c 100644 (file)
--- a/src/pcm/pcm_plug.c
+++ b/src/pcm/pcm_plug.c
@@ -469,14 +469,14 @@ static int snd_pcm_plug_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t *s
                return err;
        if (snd_pcm_plug_direct(pcm, setup->channel))
                return 0;
-       setup->buffer_size = snd_pcm_plug_client_size(pcm, setup->channel, setup->buffer_size);
        setup->frag_size = snd_pcm_plug_client_size(pcm, setup->channel, setup->frag_size);
-       /* FIXME: it may overflow */
-       setup->byte_boundary = snd_pcm_plug_client_size(pcm, setup->channel, setup->byte_boundary);
+       setup->buffer_size = setup->frags * setup->frag_size;
+       setup->byte_boundary = setup->frag_boundary * setup->frag_size;
        if (setup->mode == SND_PCM_MODE_STREAM) {
                setup->buf.stream.bytes_min = snd_pcm_plug_client_size(pcm, setup->channel, setup->buf.stream.bytes_min);
                setup->buf.stream.bytes_align = snd_pcm_plug_client_size(pcm, setup->channel, setup->buf.stream.bytes_align);
                setup->buf.stream.bytes_xrun_max = snd_pcm_plug_client_size(pcm, setup->channel, setup->buf.stream.bytes_xrun_max);
+               setup->buf.stream.bytes_fill_max = snd_pcm_plug_client_size(pcm, setup->channel, setup->buf.stream.bytes_fill_max);
        } else if (setup->mode != SND_PCM_MODE_BLOCK) {
                return -EINVAL;
        }