[PATCH] extcon: realtek: fix NULL deref check in extcon_rtk_type_c_probe

From: Charles Han
Date: Fri Oct 25 2024 - 05:47:18 EST


In extcon_rtk_type_c_probe() devm_kzalloc() may return NULL but this
returned value is not checked.

Fixes: 8a590d7371f0 ("extcon: add Realtek DHC RTD SoC Type-C driver")
Signed-off-by: Charles Han <hanchunchao@xxxxxxxxxx>
---
drivers/extcon/extcon-rtk-type-c.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/extcon/extcon-rtk-type-c.c b/drivers/extcon/extcon-rtk-type-c.c
index 19a01e663733..2820c7e82481 100644
--- a/drivers/extcon/extcon-rtk-type-c.c
+++ b/drivers/extcon/extcon-rtk-type-c.c
@@ -1369,6 +1369,8 @@ static int extcon_rtk_type_c_probe(struct platform_device *pdev)
}

type_c->type_c_cfg = devm_kzalloc(dev, sizeof(*type_c_cfg), GFP_KERNEL);
+ if (!type_c->type_c_cfg)
+ return -ENOMEM;

memcpy(type_c->type_c_cfg, type_c_cfg, sizeof(*type_c_cfg));

--
2.31.1