spi: sprd: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Chunyan Zhang <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-sprd-adi.c

···
 			dev_info(&pdev->dev, "no hardware spinlock supplied\n");
 			break;
 		default:
-			dev_err(&pdev->dev,
-				"failed to find hwlock id, %d\n", ret);
-			fallthrough;
-		case -EPROBE_DEFER:
+			dev_err_probe(&pdev->dev, ret, "failed to find hwlock id\n");
 			goto put_ctlr;
 		}
 	}

drivers/spi/spi-sprd.c

···
 static int sprd_spi_dma_request(struct sprd_spi *ss)
 {
 	ss->dma.dma_chan[SPRD_SPI_RX] = dma_request_chan(ss->dev, "rx_chn");
-	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_RX])) {
-		if (PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]) == -EPROBE_DEFER)
-			return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]);
-
-		dev_err(ss->dev, "request RX DMA channel failed!\n");
-		return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]);
-	}
+	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_RX]))
+		return dev_err_probe(ss->dev, PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]),
+				     "request RX DMA channel failed!\n");
 
 	ss->dma.dma_chan[SPRD_SPI_TX]  = dma_request_chan(ss->dev, "tx_chn");
 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_TX])) {
 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);
-		if (PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]) == -EPROBE_DEFER)
-			return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);
-
-		dev_err(ss->dev, "request TX DMA channel failed!\n");
-		return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);
+		return dev_err_probe(ss->dev, PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]),
+				     "request TX DMA channel failed!\n");
 	}
 
 	return 0;