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Date: Thu, 19 Sep 2013 18:31:52 -0700 From: Yinghai Lu <yinghai@...nel.org> To: "Rafael J. Wysocki" <rjw@...k.pl> Cc: Viresh Kumar <viresh.kumar@...aro.org>, "cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>, "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] cpufreq: return EEXIST instead of EBUSY for second registering On Thu, Sep 19, 2013 at 3:37 PM, Rafael J. Wysocki <rjw@...k.pl> wrote: > On Thursday, September 19, 2013 09:38:32 AM Viresh Kumar wrote: >> On 19 September 2013 09:35, Yinghai Lu <yinghai@...nel.org> wrote: >> > System that cpu support intel_pstate, acpi_cpufreq fail to >> > load, and udev keep trying until trace get filled up and >> > kernel crash. >> > >> > The root cause is driver return ret from cpufreq_register_driver >> > and when some other driver take over before, it would return >> > EBUSY, then udev will keep trying... >> > >> > cpufreq_register_driver should return EEXIST instead. >> > then system could boot without appending intel_pstate=disable >> > and still use intel_pstate. >> > >> > Signed-off-by: Yinghai Lu <yinghai@...nel.org> >> >> Acked-by: Viresh Kumar <viresh.kumar@...aro.org> > > Applied, thanks! Sorry, looks like this one is not enough. please let me know if you prefer me send addon patch or revised one. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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