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Date: Tue, 23 Aug 2022 10:24:37 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Hangyu Hua <hbh25y@...il.com>, Kalle Valo <kvalo@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.19 108/287] wifi: libertas: Fix possible refcount leak in if_usb_probe() From: Hangyu Hua <hbh25y@...il.com> [ Upstream commit 6fd57e1d120bf13d4dc6c200a7cf914e6347a316 ] usb_get_dev will be called before lbs_get_firmware_async which means that usb_put_dev need to be called when lbs_get_firmware_async fails. Fixes: ce84bb69f50e ("libertas USB: convert to asynchronous firmware loading") Signed-off-by: Hangyu Hua <hbh25y@...il.com> Signed-off-by: Kalle Valo <kvalo@...nel.org> Link: https://lore.kernel.org/r/20220620092350.39960-1-hbh25y@gmail.com Link: https://lore.kernel.org/r/20220622113402.16969-1-colin.i.king@gmail.com Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/wireless/marvell/libertas/if_usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c index f29a154d995c..d75763410cdc 100644 --- a/drivers/net/wireless/marvell/libertas/if_usb.c +++ b/drivers/net/wireless/marvell/libertas/if_usb.c @@ -283,6 +283,7 @@ static int if_usb_probe(struct usb_interface *intf, return 0; err_get_fw: + usb_put_dev(udev); lbs_remove_card(priv); err_add_card: if_usb_reset_device(cardp); -- 2.35.1
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