5.4-stable review patch. If anyone has any objections, please let me know.
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From: Oleksij Rempel o.rempel@pengutronix.de
[ Upstream commit e863ff806f72098bccaf8fa89c80d9ad6187c3b0 ]
Validate Wake-on-LAN (WoL) options in `lan78xx_set_wol` before calling `usb_autopm_get_interface`. This prevents USB autopm refcounting issues and ensures the adapter can properly enter autosuspend when invalid WoL options are provided.
Fixes: eb9ad088f966 ("lan78xx: Check for supported Wake-on-LAN modes") Signed-off-by: Oleksij Rempel o.rempel@pengutronix.de Acked-by: Florian Fainelli f.fainelli@gmail.com Link: https://patch.msgid.link/20241118140351.2398166-1-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/lan78xx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 0ca3ffeb4983c..219a11e8f8d5d 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -1428,13 +1428,13 @@ static int lan78xx_set_wol(struct net_device *netdev, struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); int ret;
+ if (wol->wolopts & ~WAKE_ALL) + return -EINVAL; + ret = usb_autopm_get_interface(dev->intf); if (ret < 0) return ret;
- if (wol->wolopts & ~WAKE_ALL) - return -EINVAL; - pdata->wol = wol->wolopts;
device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts);