diff options
| author | Stephen Warren <swarren@nvidia.com> | 2012-04-06 15:16:03 -0600 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-04-15 14:41:12 -0700 |
| commit | 42e1ce3fb12b89554afeb79183c2a6ca64a83eb2 (patch) | |
| tree | 0189991088231f1ca01ad582bfac082f696406b0 /drivers/base | |
| parent | 1e14348bd67a4064ea0b9f023ce1f941a13e6788 (diff) | |
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>
(cherry picked from commit 851960ba7cb38a6a108d102e4c8b0ab702972e22)
Change-Id: Ic17d4bd832b5ea3e426d00ff5d0ae342b8abba45
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/96507
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 1af922301ec0..0a32158f7c4e 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -620,6 +620,9 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, { int ret; + if (val_len % map->format.val_bytes) + return -EINVAL; + map->lock(map); ret = _regmap_raw_write(map, reg, val, val_len); @@ -778,6 +781,9 @@ int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, unsigned int v; int ret, i; + if (val_len % map->format.val_bytes) + return -EINVAL; + map->lock(map); if (regmap_volatile_range(map, reg, val_count) || map->cache_bypass || |