[PATCH][PPC32] fix locking bugs in mv64x60 code

[Mark A. Greer]

And with the patch this time...
--
Mark A. Greer wrote:

> [Original patch slightly edited by mgreer]
>
> This patch fixes 2 SMP deadlocks. The first is that mv64x60_read() was 
> returning before the unlock. The second was mv64x60_modify() locks the 
> spin lock and calls mv64x60_read() and mv64x60_write() which also lock 
> the same spin lock.
>
> Please apply.
>
> Signed-Off-By: Brian Waite <waite at skycomputers.com>
> Signed-off-by: Mark A. Greer <mgreer at mvista.com>
>
>

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