Commit 9dfdd5ab authored by Mark Brown's avatar Mark Brown

ASoC: io: Don't dereference regmap if we failed to get one

Avoids a crash in invalid configurations.
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
parent 62d4a4b9
......@@ -145,10 +145,13 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
if (!codec->control_data)
codec->control_data = dev_get_regmap(codec->dev, NULL);
if (codec->control_data) {
ret = regmap_get_val_bytes(codec->control_data);
/* Errors are legitimate for non-integer byte multiples */
/* Errors are legitimate for non-integer byte
* multiples */
if (ret > 0)
codec->val_bytes = ret;
}
break;
default:
......
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