Make sure to deregister the USB driver before releasing the tty driver to avoid use-after-free in the USB disconnect callback where the tty devices are deregistered.
Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver") Cc: stable <sta...@vger.kernel.org> # 3.12 Cc: Won Kang <wkan...@gmail.com> Signed-off-by: Johan Hovold <jo...@kernel.org> --- drivers/staging/gdm724x/gdm_mux.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c index 400969170d1c..f03e43b1b5f6 100644 --- a/drivers/staging/gdm724x/gdm_mux.c +++ b/drivers/staging/gdm724x/gdm_mux.c @@ -664,9 +664,8 @@ static int __init gdm_usb_mux_init(void) static void __exit gdm_usb_mux_exit(void) { - unregister_lte_tty_driver(); - usb_deregister(&gdm_mux_driver); + unregister_lte_tty_driver(); } module_init(gdm_usb_mux_init); -- 2.12.2 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel