[PATCH] amba-pl011: fix panic introduced by "clear pending interrupts"

From: Sergei Shtylyov <hidden>
Date: 2012-03-27 12:13:38
Also in: linux-serial, lkml

Hello.

On 27-03-2012 0:32, Alessandro Rubini wrote:

patch 9b96fba, currently in linux-next, clears interrupts using

    Please also specify the summary of this commit in parens.

uap->port.membase that has not been assigned.  My x86 system,
that uses a pci-to-amba bridge, panics with a message like:

    BUG: unable to handle kernel NULL pointer dereference at 00000038
    IP: [<c12c85ed>] pl011_probe+0x119/0x303

Signed-off-by: Alessandro Rubini<redacted>
Acked-by: Giancarlo Asnaghi<redacted>

WBR, Sergei