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

[ Upstream commit 969c765e2b508cca9099d246c010a1e48dcfd089 ]

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

Fixes: 6641057d5dba ("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>

diff --git a/drivers/clk/clk-apple-nco.c b/drivers/clk/clk-apple-nco.c
index 39472a51530a349f38930a46d4fc707e98b4846d..457a48d4894128fff24d50eb7c9a3cbd7d35f245 100644 (file)
--- a/drivers/clk/clk-apple-nco.c
+++ b/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;