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Commit 0daae072 authored by Yang Yingliang's avatar Yang Yingliang Committed by Greg Kroah-Hartman
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isdn: mISDN: netjet: fix wrong check of device registration 



[ Upstream commit bf00f5426074249058a106a6edbb89e4b25a4d79 ]

The class is set in mISDN_register_device(), but if device_add() returns
error, it will lead to delete a device without added, fix this by using
device_is_registered() to check if the device is registered.

Fixes: a900845e ("mISDN: Add support for Traverse Technologies NETJet PCI cards")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent a636fc5a

drivers/isdn/hardware/mISDN/netjet.c

+1 −1
Original line number Diff line number Diff line
@@ -970,7 +970,7 @@ nj_release(struct tiger_hw *card) 
	}

	if (card->irq > 0)

		free_irq(card->irq, card);

	if (card->isac.dch.dev.dev.class)

	if (device_is_registered(&card->isac.dch.dev.dev))

		mISDN_unregister_device(&card->isac.dch.dev);



	for (i = 0; i < 2; i++) {