From 2d49b5987561e480bdbd8692b27fc5f49a1e2f0b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 5 Aug 2013 11:21:29 +0200 Subject: [PATCH] regmap: cache: Make sure to sync the last register in a block regcache_sync_block_raw_flush() expects the address of the register after last register that needs to be synced as its parameter. But the last call to regcache_sync_block_raw_flush() in regcache_sync_block_raw() passes the address of the last register in the block. This effectively always skips over the last register in a block, even if it needs to be synced. In order to fix it increase the address by one register. The issue was introduced in commit 75a5f89 ("regmap: cache: Write consecutive registers in a single block write"). Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- drivers/base/regmap/regcache.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index e691026..3455f83 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -719,7 +719,8 @@ static int regcache_sync_block_raw(struct regmap *map, void *block, } } - return regcache_sync_block_raw_flush(map, &data, base, regtmp); + return regcache_sync_block_raw_flush(map, &data, base, regtmp + + map->reg_stride); } int regcache_sync_block(struct regmap *map, void *block, -- 2.7.4