path: root/drivers/base
diff options
authorLars-Peter Clausen <>2013-08-05 11:21:29 +0200
committerGreg Kroah-Hartman <>2013-08-14 22:59:06 -0700
commit83b83227df02fbabf583c902fc6d55ebab47139a (patch)
tree723cb5d575b31e5af357cfd042c7fe545d9224b0 /drivers/base
parentc7039e94cecff031efbdc8ccf7e316c1c6130971 (diff)
regmap: cache: Make sure to sync the last register in a block
commit 2d49b5987561e480bdbd8692b27fc5f49a1e2f0b upstream. 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"). Signed-off-by: Lars-Peter Clausen <> Signed-off-by: Mark Brown <> Signed-off-by: Greg Kroah-Hartman <>
Diffstat (limited to 'drivers/base')
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 507ee2da0f6e..46283fd3c4c0 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -644,7 +644,8 @@ 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,