From 2fbd69c4e33360383907cf0abb245440e62a6f37 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 8 Nov 2016 13:26:50 +0100 Subject: USB: serial: fix invalid user-pointer checks Drop invalid user-pointer checks from ioctl handlers. A NULL-pointer can be valid in user space and copy_to_user() takes care of sanity checking. Signed-off-by: Johan Hovold --- drivers/usb/serial/mos7840.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/usb/serial/mos7840.c') diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 57426d703a09..9a220b8e810f 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1956,9 +1956,6 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port, if (mos7840_port == NULL) return -1; - if (!retinfo) - return -EFAULT; - memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; -- cgit v1.2.3