From: Lars-Peter Clausen Date: Mon, 5 Aug 2013 09:21:29 +0000 (+0200) Subject: regmap: cache: Make sure to sync the last register in a block X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2d49b5987561e480bdbd8692b27fc5f49a1e2f0b;p=deliverable%2Flinux.git 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 --- diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index e69102696533..3455f833e473 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,