netdev - Re: [PATCH 1/2] net: can: sja1000: Replace mdelay with usleep_range in peak_pci

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Date:   Wed, 25 Apr 2018 16:53:10 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Jia-Ju Bai <baijiaju1990@...il.com>, wg@...ndegger.com
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] net: can: sja1000: Replace mdelay with usleep_range
 in peak_pci_probe

On 04/11/2018 03:42 AM, Jia-Ju Bai wrote:
> peak_pci_probe() is never called in atomic context.
> 
> peak_pci_probe() is set as ".probe" in struct pci_driver.
> 
> Despite never getting called from atomic context, peak_pci_probe()
> calls mdelay() to busily wait.
> This is not necessary and can be replaced with usleep_range() to
> avoid busy waiting.
> 
> This is found by a static analysis tool named DCNS written by myself.
> And I also manually check it.
> 
> Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>

Applied both to linux-can-next.

tnx,
Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
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