This is a note to let you know that I've just added the patch titled
cpufreq: loongson2: Unregister platform_driver on failure
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-loongson2-unregister-platform_driver-on-fail.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2faf29d851fda4496050ff92892f9a965250f3b1
Author: Yuan Can <yuancan@xxxxxxxxxx>
Date: Wed Oct 16 17:06:15 2024 +0800
cpufreq: loongson2: Unregister platform_driver on failure
[ Upstream commit 5f856d71ccdf89b4bac0ff70ebb0bb582e7f7f18 ]
When cpufreq_register_driver() returns error, the cpufreq_init() returns
without unregister platform_driver, fix by add missing
platform_driver_unregister() when cpufreq_register_driver() failed.
Fixes: f8ede0f700f5 ("MIPS: Loongson 2F: Add CPU frequency scaling support")
Signed-off-by: Yuan Can <yuancan@xxxxxxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index d05e761d95721..e1893e33b1a94 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -155,7 +155,9 @@ static int __init cpufreq_init(void)
ret = cpufreq_register_driver(&loongson2_cpufreq_driver);
- if (!ret && !nowait) {
+ if (ret) {
+ platform_driver_unregister(&platform_driver);
+ } else if (!nowait) {
saved_cpu_wait = cpu_wait;
cpu_wait = loongson2_cpu_wait;
}
