From: Lee Jones <lee.jones@linaro.org>
To: lee.jones@linaro.org
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] mfd: core: Fix memory leak of 'cell'
Date: Thu, 16 Jul 2020 15:28:51 +0100 [thread overview]
Message-ID: <20200716142851.1669946-1-lee.jones@linaro.org> (raw)
When creating a platform device from an MFD cell description, we
allocate some memory and make a copy which is then stored inside the
platform_device's structure. However, care is not currently taken to
free the allocated memory when the platform device is torn down.
This patch takes care of the leak.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/mfd/mfd-core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index f5a73af60dd40..e831e733b38cf 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -297,7 +297,10 @@ static int mfd_remove_devices_fn(struct device *dev, void *data)
regulator_bulk_unregister_supply_alias(dev, cell->parent_supplies,
cell->num_parent_supplies);
+ kfree(cell);
+
platform_device_unregister(pdev);
+
return 0;
}
--
2.25.1
next reply other threads:[~2020-07-16 14:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 14:28 Lee Jones [this message]
[not found] ` <CGME20200805142610eucas1p1dd85e87d57dab1433d3d31a9c0ec49d6@eucas1p1.samsung.com>
2020-08-05 14:26 ` [PATCH 1/1] mfd: core: Fix memory leak of 'cell' Marek Szyprowski
[not found] ` <CGME20200813072409eucas1p1dd94af95802a53a5b5f2991cd535d843@eucas1p1.samsung.com>
2020-08-13 7:24 ` Marek Szyprowski
2020-08-13 8:01 ` Lee Jones
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