[PATCH 6.11 606/817] phy: realtek: usb: fix NULL deref in rtk_usb2phy_probe

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6.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Charles Han <hanchunchao@xxxxxxxxxx>

[ Upstream commit 04e3e9188291a183b27306ddb833722c0d083d6a ]

In rtk_usb2phy_probe() devm_kzalloc() may return NULL
but this returned value is not checked.

Fixes: 134e6d25f6bd ("phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY")
Signed-off-by: Charles Han <hanchunchao@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241025065912.143692-1-hanchunchao@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/phy/realtek/phy-rtk-usb2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/realtek/phy-rtk-usb2.c b/drivers/phy/realtek/phy-rtk-usb2.c
index e3ad7cea51099..e8ca2ec5998fe 100644
--- a/drivers/phy/realtek/phy-rtk-usb2.c
+++ b/drivers/phy/realtek/phy-rtk-usb2.c
@@ -1023,6 +1023,8 @@ static int rtk_usb2phy_probe(struct platform_device *pdev)
 
 	rtk_phy->dev			= &pdev->dev;
 	rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+	if (!rtk_phy->phy_cfg)
+		return -ENOMEM;
 
 	memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
 
-- 
2.43.0







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