3896 	signed char *channel_buf;  in snd_hdsp_playback_copy()  local
3901 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_playback_copy()
3902 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_playback_copy()
3904 	if (copy_from_user(channel_buf + pos, src, count))  in snd_hdsp_playback_copy()
3914 	signed char *channel_buf;  in snd_hdsp_playback_copy_kernel()  local
3916 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);  in snd_hdsp_playback_copy_kernel()
3917 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_playback_copy_kernel()
3919 	memcpy(channel_buf + pos, src, count);  in snd_hdsp_playback_copy_kernel()
3928 	signed char *channel_buf;  in snd_hdsp_capture_copy()  local
3933 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_capture_copy()
3934 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_capture_copy()
3936 	if (copy_to_user(dst, channel_buf + pos, count))  in snd_hdsp_capture_copy()
3946 	signed char *channel_buf;  in snd_hdsp_capture_copy_kernel()  local
3948 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);  in snd_hdsp_capture_copy_kernel()
3949 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_capture_copy_kernel()
3951 	memcpy(dst, channel_buf + pos, count);  in snd_hdsp_capture_copy_kernel()
3960 	signed char *channel_buf;  in snd_hdsp_hw_silence()  local
3962 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_hw_silence()
3963 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_hw_silence()
3965 	memset(channel_buf + pos, 0, count);  in snd_hdsp_hw_silence()