linux-kernel - Re: [PATCH] usb: isp1760: Use kasprintf

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Date:   Wed, 7 Mar 2018 20:20:54 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Himanshu Jha <himanshujha199640@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Johan Hovold <johan@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        USB <linux-usb@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: isp1760: Use kasprintf

On Wed, Mar 7, 2018 at 8:08 PM, Himanshu Jha
<himanshujha199640@...il.com> wrote:
> Use kasprintf instead of combination of kmalloc and sprintf and
> therefore avoid unnecessary computation of string length.

>         devname = dev_name(isp->dev);

Do you still need this temporary variable?

> -       udc->irqname = kmalloc(strlen(devname) + 7, GFP_KERNEL);
> +       udc->irqname = kasprintf(GFP_KERNEL, "%s (udc)", devname);

Perhaps

devname -> dev_name(isp->dev)

?


-- 
With Best Regards,
Andy Shevchenko