spi: spi-zynq: Do not check for 0 return after calling platform_get_irq()

It is not possible for platform_get_irq() to return 0. Use the
return value from platform_get_irq().

Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230802094357.981100-1-ruanjinjie@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-zynq-qspi.c

@@ -679,8 +679,8 @@ static int zynq_qspi_probe(struct platform_device *pdev)
 	}
 
 	xqspi->irq = platform_get_irq(pdev, 0);
-	if (xqspi->irq <= 0) {
-		ret = -ENXIO;
+	if (xqspi->irq < 0) {
+		ret = xqspi->irq;
 		goto clk_dis_all;
 	}
 	ret = devm_request_irq(&pdev->dev, xqspi->irq, zynq_qspi_irq,

drivers/spi/spi-zynqmp-gqspi.c

@@ -1293,8 +1293,8 @@ static int zynqmp_qspi_probe(struct platform_device *pdev)
 	zynqmp_qspi_init_hw(xqspi);
 
 	xqspi->irq = platform_get_irq(pdev, 0);
-	if (xqspi->irq <= 0) {
-		ret = -ENXIO;
+	if (xqspi->irq < 0) {
+		ret = xqspi->irq;
 		goto clk_dis_all;
 	}
 	ret = devm_request_irq(&pdev->dev, xqspi->irq, zynqmp_qspi_irq,