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Message-ID: <20151002173113.GQ5552@saruman.tx.rr.com>
Date: Fri, 2 Oct 2015 12:31:13 -0500
From: Felipe Balbi <balbi@...com>
To: Peter Senna Tschudin <peter.senna@...il.com>
CC: <balbi@...com>, <stern@...land.harvard.edu>,
<sergei.shtylyov@...entembedded.com>, <standby24x7@...il.com>,
<pmladek@...e.cz>, <linux-usb@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 06/14] RFC: usb/host/fotg210: replace msleep by
usleep_range
On Mon, Sep 21, 2015 at 05:01:10PM +0200, Peter Senna Tschudin wrote:
> msleep under 20ms can result in sleeping up to 20ms, which may not be
> intended. Replace msleep(5) by usleep_range(5000, 6000).
>
> Signed-off-by: Peter Senna Tschudin <peter.senna@...il.com>
good catch. I'd apply this straight away. Alan ?
> ---
> drivers/usb/host/fotg210-hcd.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
> index e7e9991..55c2279 100644
> --- a/drivers/usb/host/fotg210-hcd.c
> +++ b/drivers/usb/host/fotg210-hcd.c
> @@ -5122,7 +5122,7 @@ static int fotg210_run(struct usb_hcd *hcd)
> fotg210->rh_state = FOTG210_RH_RUNNING;
> /* unblock posted writes */
> fotg210_readl(fotg210, &fotg210->regs->command);
> - msleep(5);
> + usleep_range(5000, 6000);
> up_write(&ehci_cf_port_reset_rwsem);
> fotg210->last_periodic_enable = ktime_get_real();
>
> --
> 2.1.0
>
--
balbi
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