linux-kernel - [PATCH] uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd

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Date:	Tue, 27 Nov 2012 00:26:46 +0400
From:	Alexey Khoroshilov <khoroshilov@...ras.ru>
To:	Inaky Perez-Gonzalez <inaky.perez-gonzalez@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	ldv-project@...uxtesting.org
Subject: [PATCH] uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd_async()

There is the only path in uwb_rc_cmd_async() where rc->uwb_dev is left unlocked.

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

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/uwb/reset.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/uwb/reset.c b/drivers/uwb/reset.c
index 7032285..8b47c9c 100644
--- a/drivers/uwb/reset.c
+++ b/drivers/uwb/reset.c
@@ -97,6 +97,7 @@ int uwb_rc_cmd_async(struct uwb_rc *rc, const char *cmd_name,
 	neh = uwb_rc_neh_add(rc, cmd, expected_type, expected_event, cb, arg);
 	if (IS_ERR(neh)) {
 		result = PTR_ERR(neh);
+		uwb_dev_unlock(&rc->uwb_dev);
 		goto out;
 	}
 
-- 
1.7.9.5

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