diff options
Diffstat (limited to 'sound/hda/codecs/side-codecs/tas2781_hda_i2c.c')
| -rw-r--r-- | sound/hda/codecs/side-codecs/tas2781_hda_i2c.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c index 45a70fbf6205..b5b7a1e82b75 100644 --- a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c +++ b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c @@ -315,6 +315,11 @@ static int tas2563_save_calibration(struct tas2781_hda *h) unsigned int attr; int ret, i, j, k; + if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE)) { + dev_err(p->dev, "%s: NO EFI FOUND!\n", __func__); + return -EINVAL; + } + cd->cali_dat_sz_per_dev = TAS2563_CAL_DATA_SIZE * TASDEV_CALIB_N; /* extra byte for each device is the device number */ |