[PATCH] ppc64: iSeries early printk breakage

Stephen Rothwell sfr at canb.auug.org.au
Thu Sep 8 11:01:15 EST 2005

On Wed, 7 Sep 2005 06:04:36 -0500 Milton Miller <miltonm at bga.com> wrote:
> Does anything actually break without this patch?

Yes, an iSeries box will not boot.

> My reading of unregister_console says we will acquire
> the console semaphore, walk the list, fail to find the
> console, relase the semaphore, and return.

Consider the case that console_drivers == NULL (because we have never called register_console).
unregister_console dereferences console_drivers ...

Stephen Rothwell                    sfr at canb.auug.org.au
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