[PATCH] regcache: rbtree: Restore async flag when exiting on error

[PATCH] regcache: rbtree: Restore async flag when exiting on error

[Mark Brown]

rbtree cache syncs run with asynchronous I/O enabled, this is indicated
by setting the async flag on the regmap.  During a normal exit we reset
to synchronous mode but if we exit early due to an error this restore is
missed and the regmap is left in async mode.  Reset the flag on error as
well.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/base/regmap/regcache-rbtree.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index e2feed6dbecf..26ac2c2a2095 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -494,8 +494,10 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min,
 		ret = regcache_sync_block(map, rbnode->block,
 					  rbnode->cache_present,
 					  rbnode->base_reg, start, end);
-		if (ret != 0)
+		if (ret != 0) {
+			map->async = false;
 			return ret;
+		}
 	}
 
 	map->async = false;

---
base-commit: 2dee91ee94eec85d09c13c7ca83e3005906d3732
base-tree: git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git for-7.4
change-id: 20261026-regcache-rbtree-restore-sync-3ae8bf6ccfb7

Best regards,
--  
Mark Brown <broonie@kernel.org>