Messages in this thread | | | Date | Thu, 10 Oct 2013 16:46:30 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] rtc: pl030: Use devm_kzalloc() instead of kmalloc() |
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On Thu, 10 Oct 2013 16:14:00 -0700 Joe Perches <joe@perches.com> wrote:
> On Thu, 2013-10-10 at 16:06 -0700, Andrew Morton wrote: > > On Tue, 08 Oct 2013 21:59:27 -0700 Joe Perches <joe@perches.com> wrote: > > > > > I was a bit surprised to find there isn't a devm_kmalloc. > > > > Yes, the unconditional memset is silly. Especially when the > > function has a handy gfp_t and could be passed __GFP_ZERO. > > > > The comment says "managed kzalloc/kfree for device drivers, no kmalloc, > > always use kzalloc". There's no explanation for this - it looks like > > some ideological thing. > > Try this patch instead: > https://lkml.org/lkml/2013/10/9/14 >
That looks rather better.
Apart from forcing a needless memset, the current code will defeat kmemcheck used-uninitialized checking.
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