From: Zhang Qilong <zhangqilong3@huawei.com>
Date: Mon, 23 Nov 2020 14:58:09 +0000 (+0800)
Subject: usb: oxu210hp-hcd: Fix memory leak in oxu_create
X-Git-Tag: v4.4.249~56
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a88d034da648dc040554e3e5134af8a194afd4e;p=thirdparty%2Fkernel%2Fstable.git

usb: oxu210hp-hcd: Fix memory leak in oxu_create

[ Upstream commit e5548b05631ec3e6bfdaef1cad28c799545b791b ]

usb_create_hcd will alloc memory for hcd, and we should
call usb_put_hcd to free it when adding fails to prevent
memory leak.

Fixes: b92a78e582b1a ("usb host: Oxford OXU210HP HCD driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201123145809.1456541-1-zhangqilong3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 1f139d82cee08..d1e0d9d4e7a60 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3741,8 +3741,10 @@ static struct usb_hcd *oxu_create(struct platform_device *pdev,
 	oxu->is_otg = otg;
 
 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (ret < 0)
+	if (ret < 0) {
+		usb_put_hcd(hcd);
 		return ERR_PTR(ret);
+	}
 
 	device_wakeup_enable(hcd->self.controller);
 	return hcd;