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-rw-r--r--drivers/base/regmap/regcache.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 876622453cd..2d55b261f1c 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -281,6 +281,7 @@ EXPORT_SYMBOL_GPL(regcache_sync);
void regcache_cache_only(struct regmap *map, bool enable)
{
mutex_lock(&map->lock);
+ WARN_ON(map->cache_bypass && enable);
map->cache_only = enable;
mutex_unlock(&map->lock);
}
@@ -300,6 +301,7 @@ EXPORT_SYMBOL_GPL(regcache_cache_only);
void regcache_cache_bypass(struct regmap *map, bool enable)
{
mutex_lock(&map->lock);
+ WARN_ON(map->cache_only && enable);
map->cache_bypass = enable;
mutex_unlock(&map->lock);
}