[PATCH] usb: gadget: goku_udc: fix memory leak in goku_probe()

From: Alexey Khoroshilov
Date: Thu Aug 25 2016 - 20:18:55 EST


Memory allocated for goku_udc device is not deallocated at error
paths in goku_probe(), because gadget_release() destructor
is not registered yet.

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

Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
---
drivers/usb/gadget/udc/goku_udc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index d2205d9e0c8b..8b290c128d97 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1839,6 +1839,8 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
err:
if (dev)
goku_remove (pdev);
+ /* gadget_release is not registered yet, kfree explicitly */
+ kfree(dev);
return retval;
}

--
2.7.4