regmap: Grab the lock in regcache_cache_only()

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
git-mirror · Sep 28, 2011 · 38f6916 · 38f6916
1 parent ec8a365
commit 38f6916
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
@@ -273,7 +273,9 @@ EXPORT_SYMBOL_GPL(regcache_sync);
  */
 void regcache_cache_only(struct regmap *map, bool enable)
 {
+	mutex_lock(&map->sync_lock);
 	map->cache_only = enable;
+	mutex_unlock(&map->sync_lock);
 }
 EXPORT_SYMBOL_GPL(regcache_cache_only);