linux-kernel - [PATCH] uwb: hwa-rc: fix memory leak at probe

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Message-Id: <20180706123253.15570-1-vasilyev@ispras.ru>
Date:   Fri,  6 Jul 2018 15:32:53 +0300
From:   Anton Vasilyev <vasilyev@...ras.ru>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Anton Vasilyev <vasilyev@...ras.ru>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] uwb: hwa-rc: fix memory leak at probe

hwarc_probe() allocates memory for hwarc, but does not free it
if uwb_rc_add() or hwarc_get_version() fail.

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

Signed-off-by: Anton Vasilyev <vasilyev@...ras.ru>
---
 drivers/uwb/hwa-rc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c
index 9a53912bdfe9..5d3ba747ae17 100644
--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -873,6 +873,7 @@ static int hwarc_probe(struct usb_interface *iface,
 error_rc_add:
 	usb_put_intf(iface);
 	usb_put_dev(hwarc->usb_dev);
+	kfree(hwarc);
 error_alloc:
 	uwb_rc_put(uwb_rc);
 error_rc_alloc:
-- 
2.18.0