From fc3ebd788e894b4dd6c9524cb3874eeeb1e862d6 Mon Sep 17 00:00:00 2001 From: Krystian Garbaciak Date: Fri, 15 Jun 2012 11:23:56 +0100 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- drivers/base/regmap/regmap.c | 22 ++++++++++++++-------- 1 file 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); -- 2.34.1