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authorLars-Peter Clausen <lars@metafoo.de>2011-11-16 16:28:17 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-16 17:34:53 +0000
commit720e4616e8fd85284ef1addd8b8d93d8415e8dbc (patch)
tree7e168b437b5b4ecb1154186e3234fbdbf9c52b92 /drivers/base/regmap
parentregmap: Move initialization of regcache related fields to regcache_init (diff)
downloadlinux-dev-720e4616e8fd85284ef1addd8b8d93d8415e8dbc.tar.xz
linux-dev-720e4616e8fd85284ef1addd8b8d93d8415e8dbc.zip
regmap: Make reg_config reg_defaults const
The reg_defaults field usually points to a static per driver array, which should not be modified. Make requirement this explicit by making reg_defaults const. To allow this the regcache_init code needs some minor changes. Previoulsy the reg_config was not available in regcache_init and regmap->reg_defaults was used to pass the default register set to regcache_init. Now that the reg_config is available we can work on it directly. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap')
-rw-r--r--drivers/base/regmap/regcache.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 0ad6cfb2c8cc..d687df6ebdb0 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -108,7 +108,6 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
return -EINVAL;
}
- map->reg_defaults = config->reg_defaults;
map->num_reg_defaults = config->num_reg_defaults;
map->num_reg_defaults_raw = config->num_reg_defaults_raw;
map->reg_defaults_raw = config->reg_defaults_raw;
@@ -127,10 +126,10 @@ int regcache_init(struct regmap *map, const struct regmap_config *config)
* won't vanish from under us. We'll need to make
* a copy of it.
*/
- if (map->reg_defaults) {
+ if (config->reg_defaults) {
if (!map->num_reg_defaults)
return -EINVAL;
- tmp_buf = kmemdup(map->reg_defaults, map->num_reg_defaults *
+ tmp_buf = kmemdup(config->reg_defaults, map->num_reg_defaults *
sizeof(struct reg_default), GFP_KERNEL);
if (!tmp_buf)
return -ENOMEM;