linux-kernel - [PATCH 09/14] cpufreq: intel_pstate: Modify check in intel_pstate_update

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Date:   Sun, 12 Mar 2017 18:20:48 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH 09/14] cpufreq: intel_pstate: Modify check in intel_pstate_update_status()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

One of the checks in intel_pstate_update_status() implicitly relies
on the information that there are only two struct cpufreq_driver
objects available, but it is better to do it directly against the
value it really is about (to make the code easier to follow if
nothing else).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/cpufreq/intel_pstate.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/drivers/cpufreq/intel_pstate.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/intel_pstate.c
+++ linux-pm/drivers/cpufreq/intel_pstate.c
@@ -2439,7 +2439,7 @@ static int intel_pstate_update_status(co
 
 	if (size == 7 && !strncmp(buf, "passive", size)) {
 		if (intel_pstate_driver) {
-			if (intel_pstate_driver != &intel_pstate)
+			if (intel_pstate_driver == &intel_cpufreq)
 				return 0;
 
 			ret = intel_pstate_unregister_driver();