From 8771039482d965bdc8cefd972bcabac2b76944a8 Mon Sep 17 00:00:00 2001
From: zhangqilong <zhangqilong3@huawei.com>
Date: Sat, 19 Mar 2022 10:38:22 +0800
Subject: [PATCH] usb: xhci: tegra:Fix PM usage reference leak of
 tegra_xusb_unpowergate_partitions
Git-commit: 8771039482d965bdc8cefd972bcabac2b76944a8
References: git-fixes
Patch-mainline: v5.18-rc5

pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced.

Fixes: 41a7426d25fa ("usb: xhci: tegra: Unlink power domain devices")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20220319023822.145641-1-zhangqilong3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/usb/host/xhci-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index c8af2cd2216d..996958a6565c 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1034,13 +1034,13 @@ static int tegra_xusb_unpowergate_partitions(struct tegra_xusb *tegra)
 	int rc;
 
 	if (tegra->use_genpd) {
-		rc = pm_runtime_get_sync(tegra->genpd_dev_ss);
+		rc = pm_runtime_resume_and_get(tegra->genpd_dev_ss);
 		if (rc < 0) {
 			dev_err(dev, "failed to enable XUSB SS partition\n");
 			return rc;
 		}
 
-		rc = pm_runtime_get_sync(tegra->genpd_dev_host);
+		rc = pm_runtime_resume_and_get(tegra->genpd_dev_host);
 		if (rc < 0) {
 			dev_err(dev, "failed to enable XUSB Host partition\n");
 			pm_runtime_put_sync(tegra->genpd_dev_ss);
-- 
2.34.1