diff options
| -rw-r--r-- | drivers/base/regmap/regcache.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index 362e043e26d8..8031007b4887 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -349,6 +349,9 @@ int regcache_sync(struct regmap *map) const char *name; bool bypass; + if (WARN_ON(map->cache_type == REGCACHE_NONE)) + return -EINVAL; + BUG_ON(!map->cache_ops); map->lock(map->lock_arg); @@ -418,6 +421,9 @@ int regcache_sync_region(struct regmap *map, unsigned int min, const char *name; bool bypass; + if (WARN_ON(map->cache_type == REGCACHE_NONE)) + return -EINVAL; + BUG_ON(!map->cache_ops); map->lock(map->lock_arg); |