hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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 <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2013-08-05 11:21:29 +02:00 committed by Mark Brown
parent c095ba7224
commit 2d49b59875
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/base/regmap/regcache.c
View File

@ -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, int regcache_sync_block(struct regmap *map, void *block,