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From: Markus Elfring <Markus.Elfring@web.de>
To: Chanwoo Choi <cw00.choi@samsung.com>,
	linux-clk@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Tomasz Figa <tomasz.figa@gmail.com>,
	Aditya Pakki <pakki001@umn.edu>, Kangjie Lu <kjlu@umn.edu>,
	Navid Emamdoost <emamd001@umn.edu>,
	Stephen McCamant <smccaman@umn.edu>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: clk: samsung: Checking a kmemdup() call in _samsung_clk_register_pll()
Date: Mon, 14 Oct 2019 10:05:09 +0200	[thread overview]
Message-ID: <ecfa721b-4176-71cb-85de-2aefe0b3d30a@web.de> (raw)
In-Reply-To: <725ace30-a4a7-25dd-2351-f007bb8b35ed@samsung.com>

>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/clk/samsung/clk-pll.c?id=1c0cc5f1ae5ee5a6913704c0d75a6e99604ee30a#n1275
>> https://protect2.fireeye.com/url?k=7e77b0ebee9a0c3e.7e763ba4-43f341fdfe1d32b1&u=https://elixir.bootlin.com/linux/v5.4-rc2/source/drivers/clk/samsung/clk-pll.c#L1275
> drivers/clk/samsung/clk-pll.c considers the case of 'pll->rate_table is NULL'
> So, maybe just show the warning message if failed to allocate memory
> of 'pll->rate_table'.

How do you think about to recheck information sources around
the Linux allocation failure report?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?id=da94001239cceb93c132a31928d6ddc4214862d5#n878


> Bu, IMHO, the error handling is necessary in order to support
> what 'pll_clk->rate_table' isn't NULL.

Can an other error handling strategy make sense at this place?

Regards,
Markus

  reply	other threads:[~2019-10-14  8:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20191012141739epcas3p31e41c151b30d49c94aeb933aa42dc9f7@epcas3p3.samsung.com>
2019-10-12 14:17 ` clk: samsung: Checking a kmemdup() call in _samsung_clk_register_pll() Markus Elfring
2019-10-14  6:55   ` Chanwoo Choi
2019-10-14  8:05     ` Markus Elfring [this message]
2019-10-12 14:17 Markus Elfring
2019-10-15 14:49 ` Tomasz Figa
2019-10-15 17:55   ` Markus Elfring
2019-10-16 11:43     ` Tomasz Figa
2019-10-16 11:58       ` Markus Elfring
2019-10-15 17:55   ` Markus Elfring
2019-10-16 10:55   ` Markus Elfring
2019-10-16 11:44     ` Tomasz Figa

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