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can: etas_es58x: es58x_init_netdev(): free netdev when register_candev()

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[ Upstream commit 709cb2f9ed ]

In case of register_candev() fails, clear
es58x_dev->netdev[channel_idx] and add free_candev(). Otherwise
es58x_free_netdevs() will unregister the netdev that has never been
registered.

Fixes: 8537257874 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Arunachalam Santhanam <Arunachalam.Santhanam@in.bosch.com>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/1668413685-23354-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhang Changzhong 2022-11-14 16:14:44 +08:00 committed by Greg Kroah-Hartman
parent 260122778b
commit d44fd8bdfc
1 changed files with 4 additions and 1 deletions
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5
drivers/net/can/usb/etas_es58x/es58x_core.c
View file

@ -2091,8 +2091,11 @@ static int es58x_init_netdev(struct es58x_device *es58x_dev, int channel_idx)
netdev->dev_port = channel_idx;
ret = register_candev(netdev);
if (ret)
if (ret) {
es58x_dev->netdev[channel_idx] = NULL;
free_candev(netdev);
return ret;
}
netdev_queue_set_dql_min_limit(netdev_get_tx_queue(netdev, 0),
es58x_dev->param->dql_min_limit);