Re: [PATCH] clk: Correct handling of NULL clk in __clk_{get, put}

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Mike,

On 10.02.2014 16:02, Sylwester Nawrocki wrote:
On 30/01/14 05:50, Sachin Kamat wrote:
On 10 January 2014 15:34, Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> wrote:
On 08/01/14 05:44, Sachin Kamat wrote:
Hi Sylwester,

On 7 January 2014 17:33, Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx> wrote:
Ensure clk->kref is dereferenced only when clk is not NULL.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
---
Hi Sachin,

please try if this patch fixes the exyno5420 boot crash.

Confirmed that this patch works fine on 5420 as well as already
working 4210 and 5250 boards.
Thanks for the quick fix.

Tested-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>

Thanks Sachin. Mike, it seems we need this patch on top of
my clk-unregister branch. Sorry for overlooking this issue.
Could you add the $subject patch to your clk-next tree ?

Gentle ping Mike. Hope we can have this patch in rc-2.

A gentle reminder, this patch is still not in current -rc and is required
to fix booting of some exynos platforms.

It's been one and a half of a month since Sylwester posted this patch. Sorry for nagging, but for this whole period we've been observing complete breakage of several platforms, including Exynos4412-Trats2 board, due to NULL pointer dereference at boot-up time, so I'd consider this patch a _critical_ fix.

Can we expect this patch to be applied to your tree and sent for next rc release or I should apply it to my tree and send a pull request to Linus directly?

Best regards,
Tomasz
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