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From: Stephen Boyd <sboyd@codeaurora.org>
To: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Michael Turquette <mturquette@baylibre.com>,
	linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] clk: core: Copy connection id
Date: Fri, 24 Feb 2017 12:44:39 -0800	[thread overview]
Message-ID: <20170224204439.GD25384@codeaurora.org> (raw)
In-Reply-To: <60d115f6c11bc51cd8bc10c64cd222c3cdb43cc7.1487596492.git.leonard.crestez@nxp.com>

On 02/20, Leonard Crestez wrote:
> Some drivers use sprintf to build clk connection id names but the clk
> core will save those strings and occasionally print them back. Duplicate
> the con_id strings instead of fixing all the users.
> 
> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
> ---
>  drivers/clk/clk.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Some examples of using sprintf for con_id include:
> drivers/mfd/omap-usb-host.c
> drivers/tty/serial/samsung.c
> sound/soc/fsl/fsl_asrc.c
> 
> There are lots more. They are difficult to find and "fixing" them on the
> consumer side requires nasty code to keep track of the allocated clkname.

Good catch. What about dev_id though? That could also have the
same problem if some device is removed and we're still holding a
reference to the kobject's name. This is probably more rare than
what is happening here, but still seems possible that we might
trip over that later.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2017-02-24 20:44 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-20 13:20 [PATCH] clk: core: Copy connection id Leonard Crestez
2017-02-24 20:44 ` Stephen Boyd [this message]
2017-02-25  9:20   ` Leonard Crestez
2017-02-28  8:05     ` sboyd
2017-03-02 12:45       ` Leonard Crestez
2017-03-07 13:53         ` sboyd

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