diff options
Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r-- | drivers/base/regmap/regmap.c | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index e93700af7e6e..e22c21affebd 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -581,14 +581,34 @@ static void regmap_range_exit(struct regmap *map) kfree(map->selector_work_buf); } +static int regmap_set_name(struct regmap *map, const struct regmap_config *config) +{ + if (config->name) { + const char *name = kstrdup_const(config->name, GFP_KERNEL); + + if (!name) + return -ENOMEM; + + kfree_const(map->name); + map->name = name; + } + + return 0; +} + int regmap_attach_dev(struct device *dev, struct regmap *map, const struct regmap_config *config) { struct regmap **m; + int ret; map->dev = dev; - regmap_debugfs_init(map, config->name); + ret = regmap_set_name(map, config); + if (ret) + return ret; + + regmap_debugfs_init(map); /* Add a devres resource for dev_get_regmap() */ m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL); @@ -674,9 +694,9 @@ struct regmap *__regmap_init(struct device *dev, const char *lock_name) { struct regmap *map; - int ret = -EINVAL; enum regmap_endian reg_endian, val_endian; int i, j; + int ret; if (!config) goto err; @@ -687,13 +707,9 @@ struct regmap *__regmap_init(struct device *dev, goto err; } - if (config->name) { - map->name = kstrdup_const(config->name, GFP_KERNEL); - if (!map->name) { - ret = -ENOMEM; - goto err_map; - } - } + ret = regmap_set_name(map, config); + if (ret) + goto err_map; if (config->disable_locking) { map->lock = map->unlock = regmap_lock_unlock_none; @@ -1137,7 +1153,7 @@ skip_format_initialization: if (ret != 0) goto err_regcache; } else { - regmap_debugfs_init(map, config->name); + regmap_debugfs_init(map); } return map; @@ -1297,6 +1313,8 @@ EXPORT_SYMBOL_GPL(regmap_field_free); */ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config) { + int ret; + regcache_exit(map); regmap_debugfs_exit(map); @@ -1309,7 +1327,11 @@ int regmap_reinit_cache(struct regmap *map, const struct regmap_config *config) map->readable_noinc_reg = config->readable_noinc_reg; map->cache_type = config->cache_type; - regmap_debugfs_init(map, config->name); + ret = regmap_set_name(map, config); + if (ret) + return ret; + + regmap_debugfs_init(map); map->cache_bypass = false; map->cache_only = false; |