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[ Upstream commit4dd5d4c036] During the probe the refclk_pad pointer is set to NULL if the 'fsl,refclk-pad-mode' property is not defined in the devicetree node. But in imx_hsio_configure_clk_pad() this pointer is unconditionally used which could result in a NULL pointer dereference. So check the pointer before to use it. Fixes:82c56b6dd2("phy: freescale: imx8qm-hsio: Add i.MX8QM HSIO PHY driver support") Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com> Link: https://patch.msgid.link/20260114-phy-fsl-imx8qm-hsio-fix-null-pointer-dereference-v1-1-730e941be464@bootlin.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>