linux-kernel - Re: [PATCH V2 12/63] clocksource/drivers/armv7m_systick: Convert init function to return error

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Message-ID: <CALszF6BumZ0FCWPqtKvvMfMU5zgi7a09rcAhufEE8k_hAC-QPQ@mail.gmail.com>
Date:	Mon, 20 Jun 2016 13:31:26 +0200
From:	Maxime Coquelin <mcoquelin.stm32@...il.com>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"moderated list:ARM/STM32 ARCHITE..." 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH V2 12/63] clocksource/drivers/armv7m_systick: Convert init
 function to return error

2016-06-16 23:26 GMT+02:00 Daniel Lezcano <daniel.lezcano@...aro.org>:
> The init functions do not return any error. They behave as the following:
>
>  - panic, thus leading to a kernel crash while another timer may work and
>    make the system boot up correctly
>
>  or
>
>  - print an error and let the caller unaware if the state of the system
>
> Change that by converting the init functions to return an error conforming
> to the CLOCKSOURCE_OF_RET prototype.
>
> Proper error handling (rollback, errno value) will be changed later case
> by case, thus this change just return back an error or success in the init
> function.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
>  drivers/clocksource/armv7m_systick.c | 18 ++++++++++++------
>  1 file changed, 12 insertions(+), 6 deletions(-)

Acked-by: Maxime Coquelin <mcoquelin.stm32@...il.com>

Thanks!
Maxime