[PATCH v1] ASoC: tas2781: Add null check for calibration data

[Baojun Xu]

For avoid null pointer problem if no calibration data exist.

Fixes: 55137f5a68b5e ("ASoC: tas2781: Put three different calibrated data solution into the same data structure")

Signed-off-by: Baojun Xu <baojun.xu@xxxxxx>
---
 sound/soc/codecs/tas2781-fmwlib.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/tas2781-fmwlib.c b/sound/soc/codecs/tas2781-fmwlib.c
index 5798d518d94c..a1d86bd309f4 100644
--- a/sound/soc/codecs/tas2781-fmwlib.c
+++ b/sound/soc/codecs/tas2781-fmwlib.c
@@ -2550,6 +2550,9 @@ static void tasdev_load_calibrated_data(struct tasdevice_priv *priv, int i)
 	int k = i * (cali_data->cali_dat_sz_per_dev + 1);
 	int rc;
 
+	if (!data || !cali_data->total_sz)
+		return;
+
 	if (data[k] != i) {
 		dev_err(priv->dev, "%s: no cal-data for dev %d from usr-spc\n",
 			__func__, i);
-- 
2.25.1