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Diffstat (limited to 'drivers/base/regmap/regmap.c')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index e0d0c7d8a5c..0e85367e504 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1261,6 +1261,9 @@ int _regmap_write(struct regmap *map, unsigned int reg, int ret; void *context = _regmap_map_get_context(map); + if (!regmap_writeable(map, reg)) + return -EIO; + if (!map->cache_bypass && !map->defer_caching) { ret = regcache_write(map, reg, val); if (ret != 0) |