From: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Date: Wed, 16 Nov 2022 11:33:39 +0000 (+0800)
Subject: cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()
X-Git-Tag: v5.15.92~1360
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=19c202e6e55c24cc5d40b06d960aafab89f01c26;p=platform%2Fkernel%2Flinux-rpi.git

cpufreq: amd_freq_sensitivity: Add missing pci_dev_put()

[ Upstream commit 91fda1f88c0968f1491ab150bb01690525af150a ]

pci_get_device() will increase the reference count for the returned
pci_dev. We need to use pci_dev_put() to decrease the reference count
after using pci_get_device(). Let's add it.

Fixes: 59a3b3a8db16 ("cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/cpufreq/amd_freq_sensitivity.c b/drivers/cpufreq/amd_freq_sensitivity.c
index d0b10ba..1517711 100644
--- a/drivers/cpufreq/amd_freq_sensitivity.c
+++ b/drivers/cpufreq/amd_freq_sensitivity.c
@@ -124,6 +124,8 @@ static int __init amd_freq_sensitivity_init(void)
 	if (!pcidev) {
 		if (!boot_cpu_has(X86_FEATURE_PROC_FEEDBACK))
 			return -ENODEV;
+	} else {
+		pci_dev_put(pcidev);
 	}
 
 	if (rdmsrl_safe(MSR_AMD64_FREQ_SENSITIVITY_ACTUAL, &val))