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SubjectRe: [PATCH] net: usb: ch9200: use kmemdup instead of kmalloc + memcpy
Date
Anup Limbu <anuplimbu14@gmail.com> writes:

> replace kmalloc + memset with kmemdup
>
> Signed-off-by: Anup Limbu <anuplimbu14@gmail.com>
> ---
> drivers/net/usb/ch9200.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
> index 5e151e6..8a40202 100644
> --- a/drivers/net/usb/ch9200.c
> +++ b/drivers/net/usb/ch9200.c
> @@ -155,12 +155,11 @@ static int control_write(struct usbnet *dev, unsigned char request,
> index, size);
>
> if (data) {
> - buf = kmalloc(size, GFP_KERNEL);
> + buf = kmemdup(data, size, GFP_KERNEL);
> if (!buf) {
> err = -ENOMEM;
> goto err_out;
> }
> - memcpy(buf, data, size);
> }
>
> err = usb_control_msg(dev->udev,


Would it be better to replace control_read() and control_write() with
the usbnet_read_cmd() and usbnet_write_cmd() if you are going to clean
this up?



Bjørn


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