devm_kasprintf() can return a NULL pointer on failure,but this
returned value in exynos_generic_icc_probe() is not checked.
Add NULL check in exynos_generic_icc_probe(), to handle kernel NULL
pointer dereference error.
Fixes: 2f95b9d5cf0b ("interconnect: Add generic interconnect driver for Exynos SoCs")
Signed-off-by: Charles Han <hanchunchao@xxxxxxxxxx>
---
drivers/interconnect/samsung/exynos.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/interconnect/samsung/exynos.c b/drivers/interconnect/samsung/exynos.c
index 9e041365d909..f3568f0d92d1 100644
--- a/drivers/interconnect/samsung/exynos.c
+++ b/drivers/interconnect/samsung/exynos.c
@@ -134,6 +134,11 @@ static int exynos_generic_icc_probe(struct platform_device *pdev)
priv->node = icc_node;
icc_node->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn",
bus_dev->of_node);
+ if (!icc_node->name) {
+ devm_kfree(&pdev->dev, priv);
+ return -ENOMEM;
+ }
+
if (of_property_read_u32(bus_dev->of_node, "samsung,data-clock-ratio",
&priv->bus_clk_ratio))
priv->bus_clk_ratio = EXYNOS_ICC_DEFAULT_BUS_CLK_RATIO;
--
2.43.0
