Drop invalid user-pointer check from TIOCGSERIAL handler.
A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.
Signed-off-by: Johan Hovold <jo...@kernel.org>
---
drivers/usb/class/cdc-acm.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index c2da3811915a..b501abe4b76d 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -877,9 +877,6 @@ static int get_serial_info(struct acm *acm, struct
serial_struct __user *info)
{
struct serial_struct tmp;
- if (!info)
- return -EINVAL;
-
memset(&tmp, 0, sizeof(tmp));
tmp.flags = ASYNC_LOW_LATENCY;
tmp.xmit_fifo_size = acm->writesize;
--
2.7.3
--
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