buf_size was initialized with snd_pcm_lib_buffer_bytes,
but never used. and so it is safe to be deleted.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 {
        struct snd_ice1712 *ice = snd_pcm_substream_chip(substream);
        struct snd_pcm_runtime *runtime = substream->runtime;
-       u32 period_size, buf_size, rate, tmp, chn;
+       u32 period_size, rate, tmp, chn;
 
        period_size = snd_pcm_lib_period_bytes(substream) - 1;
-       buf_size = snd_pcm_lib_buffer_bytes(substream) - 1;
        tmp = 0x0064;
        if (snd_pcm_format_width(runtime->format) == 16)
                tmp &= ~0x04;