Commit 851960ba authored by Stephen Warren's avatar Stephen Warren Committed by Mark Brown

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: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 9878647f
...@@ -595,6 +595,9 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, ...@@ -595,6 +595,9 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
{ {
int ret; int ret;
if (val_len % map->format.val_bytes)
return -EINVAL;
map->lock(map); map->lock(map);
ret = _regmap_raw_write(map, reg, val, val_len); ret = _regmap_raw_write(map, reg, val, val_len);
...@@ -753,6 +756,9 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, ...@@ -753,6 +756,9 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
unsigned int v; unsigned int v;
int ret, i; int ret, i;
if (val_len % map->format.val_bytes)
return -EINVAL;
map->lock(map); map->lock(map);
if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass ||
......
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