clk: clocking-wizard: check return value of devm_kasprintf()

devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).

Fixes: 2046338d ("ARM: mxs: Use soc bus infrastructure")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230530093913.1656095-9-claudiu.beznea@microchip.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/xilinx/clk-xlnx-clock-wizard.c

@@ -648,6 +648,11 @@ static int clk_wzrd_probe(struct platform_device *pdev)
 	}
 
 	clkout_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s_out0", dev_name(&pdev->dev));
+	if (!clkout_name) {
+		ret = -ENOMEM;
+		goto err_disable_clk;
+	}
+
 	if (nr_outputs == 1) {
 		clk_wzrd->clkout[0] = clk_wzrd_register_divider
 				(&pdev->dev, clkout_name,