linux-kernel - [PATCH] phy: tegra: xusb: Add error pointer check in xusb.c

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Message-ID: <20240930191101.13184-1-kdipendra88@gmail.com>
Date: Mon, 30 Sep 2024 19:11:00 +0000
From: Dipendra Khadka <kdipendra88@...il.com>
To: jckuo@...dia.com,
	vkoul@...nel.org,
	kishon@...nel.org,
	thierry.reding@...il.com,
	jonathanh@...dia.com,
	nkristam@...dia.com
Cc: Dipendra Khadka <kdipendra88@...il.com>,
	linux-phy@...ts.infradead.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] phy: tegra: xusb: Add error pointer check in xusb.c

Add error pointer check after tegra_xusb_find_lane().

Fixes: e8f7d2f409a1 ("phy: tegra: xusb: Add usb-phy support")
Signed-off-by: Dipendra Khadka <kdipendra88@...il.com>
---
 drivers/phy/tegra/xusb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index cfdb54b6070a..342f5ccf611d 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -699,6 +699,8 @@ static int tegra_xusb_setup_usb_role_switch(struct tegra_xusb_port *port)
 		return -ENOMEM;
 
 	lane = tegra_xusb_find_lane(port->padctl, "usb2", port->index);
+	if (IS_ERR(lane))
+		return PTR_ERR(lane);
 
 	/*
 	 * Assign phy dev to usb-phy dev. Host/device drivers can use phy
-- 
2.43.0