diff options
| author | Krystian Garbaciak <krystian.garbaciak@diasemi.com> | 2012-06-15 11:23:56 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-17 21:30:39 +0100 |
| commit | fc3ebd788e894b4dd6c9524cb3874eeeb1e862d6 (patch) | |
| tree | f8e15faaaa7d5a689149ddcc5965dba684140d2b /drivers/base/regmap | |
| parent | 485802a6c524e62b5924849dd727ddbb1497cc71 (diff) | |
| download | linux-fc3ebd788e894b4dd6c9524cb3874eeeb1e862d6.tar.bz2 | |
regmap: Move lock out from internal function _regmap_update_bits().
Locks are moved to regmap_update_bits(), which allows to reenter internal
function _regmap_update_bits() from inside of regmap read/write routines.
Signed-off-by: Krystian Garbaciak <krystian.garbaciak@diasemi.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regmap.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index c89aa01fb1de..652017991da6 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -982,11 +982,9 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, int ret; unsigned int tmp, orig; - map->lock(map); - ret = _regmap_read(map, reg, &orig); if (ret != 0) - goto out; + return ret; tmp = orig & ~mask; tmp |= val & mask; @@ -998,9 +996,6 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, *change = false; } -out: - map->unlock(map); - return ret; } @@ -1018,7 +1013,13 @@ int regmap_update_bits(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val) { bool change; - return _regmap_update_bits(map, reg, mask, val, &change); + int ret; + + map->lock(map); + ret = _regmap_update_bits(map, reg, mask, val, &change); + map->unlock(map); + + return ret; } EXPORT_SYMBOL_GPL(regmap_update_bits); @@ -1038,7 +1039,12 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, bool *change) { - return _regmap_update_bits(map, reg, mask, val, change); + int ret; + + map->lock(map); + ret = _regmap_update_bits(map, reg, mask, val, change); + map->unlock(map); + return ret; } EXPORT_SYMBOL_GPL(regmap_update_bits_check); |