[PATCH 2/2] staging: gdm7240: fix memory leak on failure path

[Alexey Khoroshilov]

init_usb() may fail after some of mux_rxes already allocated.
So we need to release them on the failure path.

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

Signed-off-by: Alexey Khoroshilov <khoroshilov at ispras.ru>
---
 drivers/staging/gdm724x/gdm_mux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index 5221cf9..69813c7 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -541,7 +541,7 @@ static int gdm_mux_probe(struct usb_interface *intf, const struct usb_device_id
 
 	ret = init_usb(mux_dev);
 	if (ret)
-		goto err_free_tty;
+		goto err_free_usb;
 
 	tty_dev->priv_dev = (void *)mux_dev;
 	tty_dev->send_func = gdm_mux_send;
@@ -565,8 +565,8 @@ static int gdm_mux_probe(struct usb_interface *intf, const struct usb_device_id
 
 err_unregister_tty:
 	unregister_lte_tty_device(tty_dev);
+err_free_usb:
 	release_usb(mux_dev);
-err_free_tty:
 	kfree(tty_dev);
 err_free_mux:
 	kfree(mux_dev);
-- 
1.8.1.2