dmaengine: xilinx: 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: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200828152637.16903-3-krzk@kernel.orgSigned-off-by: NVinod Koul <vkoul@kernel.org>

drivers/dma/xilinx/xilinx_dma.c

@@ -2536,13 +2536,8 @@ static int axidma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	*tmp_clk = NULL;
 
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
-	if (IS_ERR(*axi_clk)) {
-		err = PTR_ERR(*axi_clk);
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get axi_aclk (%d)\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(*axi_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(*axi_clk), "failed to get axi_aclk\n");
 
 	*tx_clk = devm_clk_get(&pdev->dev, "m_axi_mm2s_aclk");
 	if (IS_ERR(*tx_clk))
@@ -2603,22 +2598,12 @@ static int axicdma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	*tmp2_clk = NULL;
 
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
-	if (IS_ERR(*axi_clk)) {
-		err = PTR_ERR(*axi_clk);
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get axi_clk (%d)\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(*axi_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(*axi_clk), "failed to get axi_aclk\n");
 
 	*dev_clk = devm_clk_get(&pdev->dev, "m_axi_aclk");
-	if (IS_ERR(*dev_clk)) {
-		err = PTR_ERR(*dev_clk);
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get dev_clk (%d)\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(*dev_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(*dev_clk), "failed to get dev_clk\n");
 
 	err = clk_prepare_enable(*axi_clk);
 	if (err) {
@@ -2647,13 +2632,8 @@ static int axivdma_clk_init(struct platform_device *pdev, struct clk **axi_clk,
 	int err;
 
 	*axi_clk = devm_clk_get(&pdev->dev, "s_axi_lite_aclk");
-	if (IS_ERR(*axi_clk)) {
-		err = PTR_ERR(*axi_clk);
-		if (err != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get axi_aclk (%d)\n",
-				err);
-		return err;
-	}
+	if (IS_ERR(*axi_clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(*axi_clk), "failed to get axi_aclk\n");
 
 	*tx_clk = devm_clk_get(&pdev->dev, "m_axi_mm2s_aclk");
 	if (IS_ERR(*tx_clk))