spi: xilinx: Switch to use devm_spi_alloc_master()

Switch to use devm_spi_alloc_master() to simpify error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/20220920114615.2681751-1-yangyingliang@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-xilinx.c

@@ -421,7 +421,7 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	master = spi_alloc_master(&pdev->dev, sizeof(struct xilinx_spi));
+	master = devm_spi_alloc_master(&pdev->dev, sizeof(struct xilinx_spi));
 	if (!master)
 		return -ENODEV;
 
@@ -439,10 +439,8 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	xspi->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(xspi->regs)) {
-		ret = PTR_ERR(xspi->regs);
-		goto put_master;
-	}
+	if (IS_ERR(xspi->regs))
+		return PTR_ERR(xspi->regs);
 
 	master->bus_num = pdev->id;
 	master->num_chipselect = num_cs;
@@ -472,14 +470,13 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 
 	xspi->irq = platform_get_irq(pdev, 0);
 	if (xspi->irq < 0 && xspi->irq != -ENXIO) {
-		ret = xspi->irq;
-		goto put_master;
+		return xspi->irq;
 	} else if (xspi->irq >= 0) {
 		/* Register for SPI Interrupt */
 		ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0,
 				dev_name(&pdev->dev), xspi);
 		if (ret)
-			goto put_master;
+			return ret;
 	}
 
 	/* SPI controller initializations */
@@ -488,7 +485,7 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 	ret = spi_bitbang_start(&xspi->bitbang);
 	if (ret) {
 		dev_err(&pdev->dev, "spi_bitbang_start FAILED\n");
-		goto put_master;
+		return ret;
 	}
 
 	dev_info(&pdev->dev, "at %pR, irq=%d\n", res, xspi->irq);
@@ -500,11 +497,6 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, master);
 	return 0;
-
-put_master:
-	spi_master_put(master);
-
-	return ret;
 }
 
 static int xilinx_spi_remove(struct platform_device *pdev)