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;