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Date: Tue, 14 Jul 2020 20:44:01 +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, Andre Edich <andre.edich@...rochip.com>, Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>, "David S. Miller" <davem@...emloft.net>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 4.19 28/58] smsc95xx: check return value of smsc95xx_reset From: Andre Edich <andre.edich@...rochip.com> [ Upstream commit 7c8b1e855f94f88a0c569be6309fc8d5c8844cd1 ] The return value of the function smsc95xx_reset() must be checked to avoid returning false success from the function smsc95xx_bind(). Fixes: 2f7ca802bdae2 ("net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver") Signed-off-by: Andre Edich <andre.edich@...rochip.com> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/usb/smsc95xx.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index c3389bd87c654..145ee4a02a8a5 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1301,6 +1301,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) /* Init all registers */ ret = smsc95xx_reset(dev); + if (ret) + goto free_pdata; /* detect device revision as different features may be available */ ret = smsc95xx_read_reg(dev, ID_REV, &val); @@ -1331,6 +1333,10 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf) schedule_delayed_work(&pdata->carrier_check, CARRIER_CHECK_DELAY); return 0; + +free_pdata: + kfree(pdata); + return ret; } static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf) -- 2.25.1
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