commit 26c2c997aa1a6c5522f6619910ba025e53e69763
author Dmitry Osipenko <digetx@gmail.com> Fri Oct 25 03:22:39 2019 +0300
committer Mark Brown <broonie@kernel.org> Mon Oct 28 13:14:45 2019 +0000
tree 5db862e157bedb652052ba0d9989b92e3ad94945
parent 55d5f62c3fa005a6a8010363d7d1855909ceefbc

regulator: core: Release coupled_rdevs on regulator_init_coupling() error

This patch fixes memory leak which should happen if regulator's coupling
fails to initialize.

Fixes: d8ca7d184b33 ("regulator: core: Introduce API for regulators coupling customization")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20191025002240.25288-1-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/core.c

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a46be22..51ce280 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5198,6 +5198,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	regulator_remove_coupling(rdev);
 	mutex_unlock(&regulator_list_mutex);
 wash:
+	kfree(rdev->coupling_desc.coupled_rdevs);
 	kfree(rdev->constraints);
 	mutex_lock(&regulator_list_mutex);
 	regulator_ena_gpio_free(rdev);