[PATCH] serial: pl011: protect attribute read from NULL platform data struct

Linus Walleij linus.walleij at linaro.org
Mon May 13 15:09:38 EDT 2013


On Thu, May 9, 2013 at 2:50 PM, Lee Jones <lee.jones at linaro.org> wrote:

> It's completely feasible that platform data will be empty i.e. when
> booting with Device Tree with no device AUXDATA. So we must protect
> it's use in these use-cases, or risk a kernel Oops.
>
> Cc: Russell King <linux at arm.linux.org.uk>
> Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> Cc: Jiri Slaby <jslaby at suse.cz>
> Cc: linux-serial at vger.kernel.org
> Cc: Arnd Bergmann <arnd at arndb.de>
> Signed-off-by: Lee Jones <lee.jones at linaro.org>
> ---
> *******                                                        *******
> If this issue has not already been fixed, this patch should be applied
> during the v3.10 -rc:s, as it fixes a serious bug which was introduced
> in the merge-window.
> *******                                                        *******

Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

You should probably put Greg on To: so that he picks this up for
the -rc:s ASAP.

Yours,
Linus Walleij



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