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Date:   Tue, 5 Dec 2017 15:28:54 -0800
From:   Stephen Boyd <>
To:     Chunyan Zhang <>
Cc:     Michael Turquette <>,,,
        Cai Li <>,
        Orson Zhai <>,
        Chunyan Zhang <>
Subject: Re: [PATCH V2] clk: fix a panic error caused by accessing NULL

On 11/21, Chunyan Zhang wrote:
> From: Cai Li <>
> In some cases the clock parent would be set NULL when doing re-parent,
> it will cause a NULL pointer accessing if clk_set trace event is
> enabled.
> This patch sets the parent as "none" if the input parameter is NULL.
> Fixes: dfc202ead312 (clk: Add tracepoints for hardware operations)
> Signed-off-by: Cai Li <>
> Signed-off-by: Chunyan Zhang <>
> ---

Applied to clk-fixes

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