| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.3 067/157] ASoC: rt286: Fix run time error while modifying const data | Date | Wed, 27 Jan 2016 10:12:14 -0800 |
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4.3-stable review patch. If anyone has any objections, please let me know.
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From: Axel Lin <axel.lin@ingics.com>
commit dc6d84c69cf8296b1e8e2fd0b1e115b7787ef4e9 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- sound/soc/codecs/rt286.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
--- 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 @@ static int rt286_i2c_probe(struct i2c_cl 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);
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