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Message-Id: <200804292253.45418.bzolnier@gmail.com>
Date: Tue, 29 Apr 2008 22:53:45 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: Sergei Shtylyov <sshtylyov@...mvista.com>
Cc: benh@...nel.crashing.org,
Linux Kernel list <linux-kernel@...r.kernel.org>,
list linux-ide <linux-ide@...r.kernel.org>
Subject: Re: [PATCH] ide: fix crash at boot with siimage driver
On Tuesday 29 April 2008, Sergei Shtylyov wrote:
> Hello.
>
> Benjamin Herrenschmidt wrote:
>
> > Some change to the IDE layer are causing the siimage driver to crash
> > at boot with a NULL dereference. This is due to the sil_dma_ops not
> > containing all the necessary pointers. I suppose it used to just
> > "override" the defaults while now, it needs to contain everything.
>
> Both the patch introducing 'struct ide_dma_ops' into drivers and making
> them 'const' were in the same batch. However, the latter patch (now commit
> f37afdaca711838b50ecd89b9c15fc745270d77c) erroneously missed siimage.c --
> which I didn't notice when reviewing, sigh...
>
> > Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Applied, thanks for fixing it.
> > ---
>
> > Index: linux-work/drivers/ide/pci/siimage.c
> > ===================================================================
> > --- linux-work.orig/drivers/ide/pci/siimage.c 2008-04-29 14:44:37.000000000 +1000
> > +++ linux-work/drivers/ide/pci/siimage.c 2008-04-29 14:44:44.000000000 +1000
> > @@ -780,7 +780,14 @@ static const struct ide_port_ops sil_sat
> > };
> >
> > static struct ide_dma_ops sil_dma_ops = {
>
> Could you please make this 'const' -- the same way as the mentioned commit
> does in other drivers?
Thanks for noticing, I took care of it while merging the patch.
> > + .dma_host_set = ide_dma_host_set,
> > + .dma_setup = ide_dma_setup,
> > + .dma_exec_cmd = ide_dma_exec_cmd,
> > + .dma_start = ide_dma_start,
> > + .dma_end = __ide_dma_end,
> > .dma_test_irq = siimage_dma_test_irq,
> > + .dma_timeout = ide_dma_timeout,
> > + .dma_lost_irq = ide_dma_lost_irq,
> > };
> >
> > #define DECLARE_SII_DEV(name_str, p_ops) \
--
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