clk: clk-apple-nco: Add NULL check in applnco_probe

BugLink: https://bugs.launchpad.net/bugs/2101915

[ Upstream commit 969c765e2b508cca9099d246c010a1e48dcfd089 ]

Add NULL check in applnco_probe, to handle kernel NULL pointer
dereference error.

Fixes: 6641057d5d ("clk: clk-apple-nco: Add driver for Apple NCO")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Link: https://lore.kernel.org/r/20241114072820.3071-1-hanchunchao@inspur.com
Reviewed-by: Martin Povišer <povik+lin@cutebit.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
CVE-2024-53154
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/clk/clk-apple-nco.c

@@ -297,6 +297,9 @@ static int applnco_probe(struct platform_device *pdev)
 		memset(&init, 0, sizeof(init));
 		init.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 						"%s-%d", np->name, i);
+		if (!init.name)
+			return -ENOMEM;
+
 		init.ops = &applnco_ops;
 		init.parent_data = &pdata;
 		init.num_parents = 1;