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From: Chanwoo Choi <cw00.choi@samsung.com>
To: Aditya Pakki <pakki001@umn.edu>
Cc: kjlu@umn.edu, Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Tomasz Figa <tomasz.figa@gmail.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] clk: samsung: Remove redundant check in samsung_cmu_register_one
Date: Wed, 22 Jan 2020 10:00:19 +0900	[thread overview]
Message-ID: <62afcecb-e019-eae2-c92d-a9cb2bc04592@samsung.com> (raw)
In-Reply-To: <20200121233349.28627-1-pakki001@umn.edu>

On 1/22/20 8:33 AM, Aditya Pakki wrote:
> Consistent with other instances of samsung_clk_init, the check
> if ctx is NULL is redundant. The function currently does not
> return NULL.
> 
> Signed-off-by: Aditya Pakki <pakki001@umn.edu>
> ---
>  drivers/clk/samsung/clk.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c
> index dad31308c071..1949ae7851b2 100644
> --- a/drivers/clk/samsung/clk.c
> +++ b/drivers/clk/samsung/clk.c
> @@ -356,10 +356,6 @@ struct samsung_clk_provider * __init samsung_cmu_register_one(
>  	}
>  
>  	ctx = samsung_clk_init(np, reg_base, cmu->nr_clk_ids);
> -	if (!ctx) {
> -		panic("%s: unable to allocate ctx\n", __func__);
> -		return ctx;
> -	}
>  
>  	if (cmu->pll_clks)
>  		samsung_clk_register_pll(ctx, cmu->pll_clks, cmu->nr_pll_clks,
> 

If samsung_clk_init() fail to allocate the memory for 'ctx',
call panic() without return. As the patch description,
samsung_clk_init() either call panic() or return
the correct 'ctx' instance. It looks good to me.

Acked-by: Chanwoo Choi <cw00.choi@samsung.com>

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics

  reply	other threads:[~2020-01-22  0:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200121233357epcas1p2ed13efb902d2b30c0ddd426e84351b9f@epcas1p2.samsung.com>
2020-01-21 23:33 ` [PATCH] clk: samsung: Remove redundant check in samsung_cmu_register_one Aditya Pakki
2020-01-22  1:00   ` Chanwoo Choi [this message]
2020-02-12 23:38   ` Stephen Boyd

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