usb: xhci-mtk: fix ptr_ret.cocci warnings
drivers/usb/host/xhci-mtk.c:256:1-3: WARNING: PTR_ERR_OR_ZERO can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: scripts/coccinelle/api/ptr_ret.cocci Fixes: b6bb72cf ("usb: xhci-mtk: add optional mcu and dma bus clocks") Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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