Messages in this thread Patch in this message | | | From | Alexey Khoroshilov <> | Subject | [PATCH] carl9170: fix leaks at failure path in carl9170_usb_probe() | Date | Fri, 27 Sep 2013 23:51:51 -0400 |
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carl9170_usb_probe() does not handle request_firmware_nowait() failure that leads to several leaks in this case. The patch adds all required deallocations.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> --- drivers/net/wireless/ath/carl9170/usb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c index 307bc0d..3c76de1 100644 --- a/drivers/net/wireless/ath/carl9170/usb.c +++ b/drivers/net/wireless/ath/carl9170/usb.c @@ -1076,8 +1076,14 @@ static int carl9170_usb_probe(struct usb_interface *intf, carl9170_set_state(ar, CARL9170_STOPPED); - return request_firmware_nowait(THIS_MODULE, 1, CARL9170FW_NAME, + err = request_firmware_nowait(THIS_MODULE, 1, CARL9170FW_NAME, &ar->udev->dev, GFP_KERNEL, ar, carl9170_usb_firmware_step2); + if (err) { + usb_put_dev(udev); + usb_put_dev(udev); + carl9170_free(ar); + } + return err; } static void carl9170_usb_disconnect(struct usb_interface *intf) -- 1.8.1.2
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