linux-kernel - [PATCH V2] cpufreq: Always clear freq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date: Fri, 12 Apr 2024 14:11:46 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>
Cc: linux-pm@...r.kernel.org,
	Vincent Guittot <vincent.guittot@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH V2] cpufreq: Always clear freq_table pointer

The freq_table pointer must be cleared even if the exit() callback isn't
present.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
V2:

- Dropping the other change as it is covered by:

  https://lore.kernel.org/all/20240411231818.2471-1-sensor1010@163.com/

 drivers/cpufreq/cpufreq.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 66e10a19d76a..13980cb0527a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1679,10 +1679,13 @@ static void __cpufreq_offline(unsigned int cpu, struct cpufreq_policy *policy)
 	 */
 	if (cpufreq_driver->offline) {
 		cpufreq_driver->offline(policy);
-	} else if (cpufreq_driver->exit) {
-		cpufreq_driver->exit(policy);
-		policy->freq_table = NULL;
+		return;
 	}
+
+	if (cpufreq_driver->exit)
+		cpufreq_driver->exit(policy);
+
+	policy->freq_table = NULL;
 }
 
 static int cpufreq_offline(unsigned int cpu)
-- 
2.31.1.272.g89b43f80a514