From fa0ef93868a6062babe1144df2807a8b1d4924d2 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 31 Dec 2021 11:36:41 +0000
Subject: [PATCH] usb: dwc3: dwc3-qcom: Add missing platform_device_put() in
 dwc3_qcom_acpi_register_core
Git-commit: fa0ef93868a6062babe1144df2807a8b1d4924d2
Patch-mainline: v5.17-rc1
References: bsc#1208741 CVE-2023-22995

Add the missing platform_device_put() before return from
dwc3_qcom_acpi_register_core in the error handling case.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211231113641.31474-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/usb/dwc3/dwc3-qcom.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -474,8 +474,10 @@ static int dwc3_qcom_acpi_register_core(
 	qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;
 
 	child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL);
-	if (!child_res)
+	if (!child_res) {
+		platform_device_put(qcom->dwc3);
 		return -ENOMEM;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -507,10 +509,15 @@ static int dwc3_qcom_acpi_register_core(
 	}
 
 	ret = platform_device_add(qcom->dwc3);
-	if (ret)
+	if (ret) {
 		dev_err(&pdev->dev, "failed to add device\n");
+		goto out;
+	}
+	kfree(child_res);
+	return 0;
 
 out:
+	platform_device_put(qcom->dwc3);
 	kfree(child_res);
 	return ret;
 }