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regmap: Fix memory leak from regmap_register_patch 

When a register patch is registered the reg_sequence is copied but the
memory allocated is never freed. Add a kfree in regmap_exit to clean it
up.

Fixes: 22f0d90a34 ("regmap: Support register patch sets")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200617152129.19655-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2020-06-17 16:21:29 +01:00 committed by Mark Brown
parent e680a4098f
commit 95b2c3ec4c
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1 changed files with 1 additions and 0 deletions
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drivers/base/regmap/regmap.c
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@ -1349,6 +1349,7 @@ void regmap_exit(struct regmap *map)
if (map->hwlock)
hwspin_lock_free(map->hwlock);
kfree_const(map->name);
kfree(map->patch);
kfree(map);
}
EXPORT_SYMBOL_GPL(regmap_exit);