ASoC: rt286: Fix run time error while modifying const data
Make a copy of memory for index_cache rather than directly use the
rt286_index_def to avoid run time error.
Fixes: c418a84a8c8f ("ASoC: Constify reg_default tables")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index bd93658..2088dfa 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -38,7 +38,7 @@
#define RT288_VENDOR_ID 0x10ec0288
struct rt286_priv {
- const struct reg_default *index_cache;
+ struct reg_default *index_cache;
int index_cache_size;
struct regmap *regmap;
struct snd_soc_codec *codec;
@@ -1161,7 +1161,11 @@
return -ENODEV;
}
- rt286->index_cache = rt286_index_def;
+ rt286->index_cache = devm_kmemdup(&i2c->dev, rt286_index_def,
+ sizeof(rt286_index_def), GFP_KERNEL);
+ if (!rt286->index_cache)
+ return -ENOMEM;
+
rt286->index_cache_size = INDEX_CACHE_SIZE;
rt286->i2c = i2c;
i2c_set_clientdata(i2c, rt286);