return_buf       1850 sound/pci/hda/patch_ca0132.c 				  unsigned char *return_buf,
return_buf       1878 sound/pci/hda/patch_ca0132.c 		if (!return_buf || return_buf_size < 4 || !bytes_returned)
return_buf       1902 sound/pci/hda/patch_ca0132.c 		memset(return_buf, 0, return_buf_size);
return_buf       1908 sound/pci/hda/patch_ca0132.c 			ret_msg = (struct scp_msg *)return_buf;