linux-kernel - [PATCH] staging: gdm72xx: fix leaks at failure path in gdm_usb

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Date:	Thu,  6 Feb 2014 01:47:13 +0100
From:	Alexey Khoroshilov <khoroshilov@...ras.ru>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	ldv-project@...uxtesting.org
Subject: [PATCH] staging: gdm72xx: fix leaks at failure path in gdm_usb_probe()

Error handling code in gdm_usb_probe() misses to deallocate
tx_ and rx_structs and to do usb_put_dev().

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

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/staging/gdm72xx/gdm_usb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
index f8788bf0a7d3..cdeffe75496b 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -635,11 +635,14 @@ static int gdm_usb_probe(struct usb_interface *intf,
 #endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
 
 	ret = register_wimax_device(phy_dev, &intf->dev);
+	if (ret)
+		release_usb(udev);
 
 out:
 	if (ret) {
 		kfree(phy_dev);
 		kfree(udev);
+		usb_put_dev(usbdev);
 	} else {
 		usb_set_intfdata(intf, phy_dev);
 	}
-- 
1.8.3.2

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