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

[Kunwu Chan]

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 <chen...@kylinos.cn>
---
 drivers/video/backlight/qcom-wled.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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:
-- 
2.39.2