From: Evgeny Novikov <novikov@ispras.ru>
Date: Tue, 21 Jul 2020 20:15:58 +0000 (+0300)
Subject: usb: gadget: net2280: fix memory leak on probe error handling paths
X-Git-Tag: v4.14.194~151
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7f15121bd7ef35c57558d317123aabffc501d434;p=users%2Fdwmw2%2Flinux.git

usb: gadget: net2280: fix memory leak on probe error handling paths

[ Upstream commit 2468c877da428ebfd701142c4cdfefcfb7d4c00e ]

Driver does not release memory for device on error handling paths in
net2280_probe() when gadget_release() is not registered yet.

The patch fixes the bug like in other similar drivers.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 170327f84ea19..f1ac9a49e2bf1 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -3786,8 +3786,10 @@ static int net2280_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	return 0;
 
 done:
-	if (dev)
+	if (dev) {
 		net2280_remove(pdev);
+		kfree(dev);
+	}
 	return retval;
 }