At the end of __regmap_init(), if dev is not NULL, regmap_attach_dev() is called, which adds a devres reference to the regmap, to be able to retrieve a dev's regmap by name using dev_get_regmap().
When calling regmap_exit, the opposite does not happen, and the reference is kept until the dev is detached.
Add a regmap_detach_dev() function, export it and call it in regmap_exit(), to make sure that the devres reference is not kept.
Fixes: 72b39f6f2b5a ("regmap: Implement dev_get_regmap()") Signed-off-by: Cosmin Tanislav demonsingur@gmail.com ---
V2: * switch to static function
V3: * move inter-version changelog after ---
drivers/base/regmap/regmap.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 53131a7ede0a6..e3e2afc2c83c6 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -598,6 +598,17 @@ int regmap_attach_dev(struct device *dev, struct regmap *map, } EXPORT_SYMBOL_GPL(regmap_attach_dev);
+static int dev_get_regmap_match(struct device *dev, void *res, void *data); + +static int regmap_detach_dev(struct device *dev, struct regmap *map) +{ + if (!dev) + return 0; + + return devres_release(dev, dev_get_regmap_release, + dev_get_regmap_match, (void *)map->name); +} + static enum regmap_endian regmap_get_reg_endian(const struct regmap_bus *bus, const struct regmap_config *config) { @@ -1445,6 +1456,7 @@ void regmap_exit(struct regmap *map) { struct regmap_async *async;
+ regmap_detach_dev(map->dev, map); regcache_exit(map);
regmap_debugfs_exit(map);