3917 	char *channel_buf;  in snd_hdsp_playback_copy()  local
3922 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_playback_copy()
3923 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_playback_copy()
3925 	if (copy_from_user(channel_buf + pos, src, count))  in snd_hdsp_playback_copy()
3935 	char *channel_buf;  in snd_hdsp_playback_copy_kernel()  local
3937 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);  in snd_hdsp_playback_copy_kernel()
3938 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_playback_copy_kernel()
3940 	memcpy(channel_buf + pos, src, count);  in snd_hdsp_playback_copy_kernel()
3949 	char *channel_buf;  in snd_hdsp_capture_copy()  local
3954 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_capture_copy()
3955 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_capture_copy()
3957 	if (copy_to_user(dst, channel_buf + pos, count))  in snd_hdsp_capture_copy()
3967 	char *channel_buf;  in snd_hdsp_capture_copy_kernel()  local
3969 	channel_buf = hdsp_channel_buffer_location(hdsp, substream->pstr->stream, channel);  in snd_hdsp_capture_copy_kernel()
3970 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_capture_copy_kernel()
3972 	memcpy(dst, channel_buf + pos, count);  in snd_hdsp_capture_copy_kernel()
3981 	char *channel_buf;  in snd_hdsp_hw_silence()  local
3983 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);  in snd_hdsp_hw_silence()
3984 	if (snd_BUG_ON(!channel_buf))  in snd_hdsp_hw_silence()
3986 	memset(channel_buf + pos, 0, count);  in snd_hdsp_hw_silence()