[PATCH 2/2] clk: Allow late cache allocation for clk->parents

[mturquette@ti.com (Mike Turquette)]

On 20120606-14:41, Rajendra Nayak wrote:
> Parent clocks for muxes are cached in clk->parents to
> avoid frequent lookups, however the cache allocation happens
> only during clock registeration and later clk_set_parent()
> assumes a cache space available and allocated.
> 
> This is not entirely true for platforms which do early clock
> registerations wherein the cache allocation using kzalloc
> could fail during clock registeration.
> 
> Allow cache allocation to happen later as part of clk_set_parent()
> to help such cases and avoid crashes assuming a cache being
> available.
> 
> While here also replace existing kmalloc() with kzalloc()
> in the file.
> 
> Signed-off-by: Rajendra Nayak <rnayak@ti.com>

I've taken this patch into clk-next for testing.

Thanks,
Mike