[PATCH 6.4 607/800] media: atomisp: gc0310: Fix double free in gc0310_remove()

Greg Kroah-Hartman
2023-07-16T20:21:13Z

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 2746a966f9f05fdb0727f4e1e8f2d51ec79e071d ]

gc0310_remove() must not call kfree(dev) since the gc0310_device struct
is devm managed so explicitly freeing it causes a double free.

While at it add a missing mutex_destroy() call for the input_lock.

Link: https://lore.kernel.org/r/20230518153214.194976-6-hdegoede@redhat.com

Fixes: 340b4dd6c183 ("media: atomisp: gc0310: Use devm_kzalloc() for data struct")
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/atomisp/i2c/atomisp-gc0310.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c b/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
index 273155308fe36..eb6db1571dc0d 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-gc0310.c
@@ -377,8 +377,8 @@ static void gc0310_remove(struct i2c_client *client)
v4l2_device_unregister_subdev(sd);
media_entity_cleanup(&dev->sd.entity);
v4l2_ctrl_handler_free(&dev->ctrls.handler);
+ mutex_destroy(&dev->input_lock);
pm_runtime_disable(&client->dev);
- kfree(dev);
}

static int gc0310_probe(struct i2c_client *client)
--
2.39.2