Re: [PATCH 1/2] sparc: Use kmalloc_array() in three functions

From: Paolo Bonzini
Date: Mon Aug 29 2016 - 05:47:56 EST




On 25/08/2016 10:22, SF Markus Elfring wrote:
> --- a/arch/sparc/kernel/led.c
> +++ b/arch/sparc/kernel/led.c
> @@ -69,7 +69,7 @@ static ssize_t led_proc_write(struct file *file, const char __user *buffer,
> if (count > LED_MAX_LENGTH)
> count = LED_MAX_LENGTH;
>
> - buf = kmalloc(sizeof(char) * (count + 1), GFP_KERNEL);
> + buf = kmalloc_array(count + 1, sizeof(*buf), GFP_KERNEL);
> if (!buf)
> return -ENOMEM;
>

Here it's probably best to just remove sizeof(char) completely, as it's
1 by definition.

Paolo