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regmap: Fix memory leak from regmap_register_patch
author
Charles Keepax
<ckeepax@opensource.cirrus.com>
Wed, 17 Jun 2020 15:21:29 +0000
(16:21 +0100)
committer
Mark Brown
<broonie@kernel.org>
Wed, 17 Jun 2020 16:12:11 +0000
(17:12 +0100)
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:
22f0d90a3482
("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>
drivers/base/regmap/regmap.c
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diff --git
a/drivers/base/regmap/regmap.c
b/drivers/base/regmap/regmap.c
index 183ec789c3fd66b08af41a3fbe1f10c4602aecf4..06a796821e8b0f8f7ebc82211e143a22fb51e3f8 100644
(file)
--- a/
drivers/base/regmap/regmap.c
+++ b/
drivers/base/regmap/regmap.c
@@
-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);