i2c: xiic: 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 <krzk@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-xiic.c

@@ -798,11 +798,10 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 	init_waitqueue_head(&i2c->wait);
 
 	i2c->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(i2c->clk)) {
-		if (PTR_ERR(i2c->clk) != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "input clock not found.\n");
-		return PTR_ERR(i2c->clk);
-	}
+	if (IS_ERR(i2c->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(i2c->clk),
+				     "input clock not found.\n");
+
 	ret = clk_prepare_enable(i2c->clk);
 	if (ret) {
 		dev_err(&pdev->dev, "Unable to enable clock.\n");