diff mbox series

hwmon: (peci/cputemp) Add a null pointer check to the wled_configure

Message ID 20240118094704.212641-1-chentao@kylinos.cn
State New
Headers
Series hwmon: (peci/cputemp) Add a null pointer check to the wled_configure |

Commit Message

Kunwu Chan Jan. 18, 2024, 9:47 a.m. UTC 
  devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
---
 drivers/video/backlight/qcom-wled.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 10129095a4c1..a0b06839d778 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1406,8 +1406,11 @@  static int wled_configure(struct wled *wled)
 	wled->ctrl_addr = be32_to_cpu(*prop_addr);
 
 	rc = of_property_read_string(dev->of_node, "label", &wled->name);
-	if (rc)
+	if (rc) {
 		wled->name = devm_kasprintf(dev, GFP_KERNEL, "%pOFn", dev->of_node);
+		if (!wled->name)
+			return -ENOMEM;
+	}
 
 	switch (wled->version) {
 	case 3: