usb: hso: check for return value in hso_serial_common_create()
in case of an error tty_register_device_attr() returns ERR_PTR(), add IS_ERR() check Reported-and-tested-by:<syzbot+67b2bd0e34f952d0321e@syzkaller.appspotmail.com> Link: https://syzkaller.appspot.com/bug?extid=67b2bd0e34f952d0321e Signed-off-by:
Rustam Kovhaev <rkovhaev@gmail.com> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
7a9212d1