On Sat, Sep 24, 2016 at 03:46:21PM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 24 Sep 2016 13:50:20 +0200
>
> * A multiplication for the size determination of a memory allocation
> indicated that an array data structure should be processed.
> Thus use the corresponding function "kmalloc_array".
>
-ENOPARSE.
> This issue was detected by using the Coccinelle software.
>
> * Replace the specification of a data structure by a pointer dereference
> to make the corresponding size determination a bit safer according to
> the Linux coding style convention.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/input/joystick/joydump.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/input/joystick/joydump.c b/drivers/input/joystick/joydump.c
> index d1c6e48..e515058 100644
> --- a/drivers/input/joystick/joydump.c
> +++ b/drivers/input/joystick/joydump.c
> @@ -79,8 +79,7 @@ static int joydump_connect(struct gameport *gameport, struct gameport_driver *dr
> }
>
> timeout = gameport_time(gameport, 10000); /* 10 ms */
> -
> - buf = kmalloc(BUF_SIZE * sizeof(struct joydump), GFP_KERNEL);
> + buf = kmalloc_array(BUF_SIZE, sizeof(*buf), GFP_KERNEL);
> if (!buf) {
> printk(KERN_INFO "joydump: no memory for testing\n");
> goto jd_end;
> --
> 2.10.0
>
--
Dmitry
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