[PATCH] serial: PL011: move interrupt clearing

[Paul Gortmaker]

On Thu, Mar 29, 2012 at 5:33 PM, Greg Kroah-Hartman
<gregkh at linuxfoundation.org> wrote:
> On Thu, Mar 29, 2012 at 02:49:37PM -0600, Grant Likely wrote:
>> On Wed, Mar 21, 2012 at 1:15 PM, Linus Walleij <linus.walleij at linaro.org> wrote:
>> > Commit 360f748b204275229f8398cb2f9f53955db1503b
>> > "serial: PL011: clear pending interrupts"
>> > attempts to clear interrupts by writing to a
>> > yet-unassigned memory address. This fixes the issue.
>> >
>> > The breaking patch is marked for stable so should be
>> > carried along with the other patch.
>> >
>> > Cc: Shreshtha Kumar Sahu <shreshthakumar.sahu at stericsson.com>
>> > Cc: Russell King <linux at arm.linux.org.uk>
>> > Cc: stable <stable at vger.kernel.org>
>> > Reported-by: Viresh Kumar <viresh.kumar at st.com>
>> > Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
>>
>> Ugh; the original patch is obviously broken.  How did it get applied
>> without testing?
>>
>> Greg, can you get this out to Linus ASAP please?  I have one comment
>> below, but I don't think it should block merging this patch.
>>
>> Tested-by: Grant Likely <grant.likely at secretlab.ca>
>
> Thanks, I'll get it to him after 3.4-rc1 is out, in a few days, along
> with other tty fixes being queued up.

Hi Greg,

Just wanted to check this didn't fall through the cracks, as I don't
see it in your tty-next or tty-linus branches.

The original bad commit causes Silent Boot Death on qemu ARM
versatile, which is kind of nasty.  It pretty much forces a bisection,
which I did, which then led me here.

Thanks,
Paul.
--

>
> greg k-h
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