Re: [PATCH] Parisc: Check kmalloc return value before use thebuffer in ccio-dma.c

From: Kyle McMartin
Date: Thu May 06 2010 - 16:09:07 EST


On Thu, May 06, 2010 at 04:59:48AM -0600, Matthew Wilcox wrote:
> On Thu, May 06, 2010 at 12:03:31AM -0400, Kyle McMartin wrote:
> > We can change it to GFP_ATOMIC|__GFP_NOFAIL so it will retry infinitely,
> > or we can panic in the error path with a nice error message so the users
> > knows why his machine isn't going to work.
>
> If we can't initialise the IOMMU, can we even get a panic message out to
> the user?
>

Excellent question! I'm not sure. IODC console will still be working up
until it gets bonked, so early_console is probably still functional up
until that point.

--Kyle
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