On Wed, Dec 04, 2013 at 01:57:39PM +0000, Alex Elder wrote:
> On 12/04/2013 07:06 AM, Alex Elder wrote:
> >>> + name_size = strlen(node->name) + 1;
> >>> >> + ccu = kzalloc(sizeof(*ccu) + name_size, GFP_KERNEL);
> >>> >> + if (!ccu) {
> >>> >> + pr_err("%s: unable to map allocate CCU struct for %s\n",
> >>> >> + __func__, node->name);
> >>> >> + return;
> >>> >> + }
> >>> >> + memcpy((char *)ccu->name, node->name, name_size);
> >> >
> >> > You could simplify this with kstrdup.
> > You are correct, and I will make that change. I think at
> > one point I needed the length but that doesn't appear to
> > be the case here.
>
> On second thought, no, you may have missed what was happening here.
> I was avoiding two kmallocs() by setting aside space at the end
> of the structure to hold its name. It may seem silly, but this
> avoids a possible (well, conceivable) failure case.
Yes, I'd misunderstood. Sorry about that.
>
> However, based on your earlier question about "what about freeing
> ccu->name?" I am going to use kstrdup() here. I'd rather the code
> put you at ease than look weird just to avoid an unlikely failure.
I'm happy either way.
Mark.
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