regmap: validate regmap_raw_read/write val_len
val_len should be a multiple of val_bytes. If it's not, error out early. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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9878647f43
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851960ba7c
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@ -595,6 +595,9 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
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{
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int ret;
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if (val_len % map->format.val_bytes)
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return -EINVAL;
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map->lock(map);
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ret = _regmap_raw_write(map, reg, val, val_len);
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@ -753,6 +756,9 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
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unsigned int v;
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int ret, i;
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if (val_len % map->format.val_bytes)
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return -EINVAL;
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map->lock(map);
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if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass ||
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