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HID: winwing: Add NULL check in winwing_init_led()

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devm_kasprintf() can return a NULL pointer on failure,but this
returned value in winwing_init_led() is not checked.
Add NULL check in winwing_init_led(), to handle kernel NULL
pointer dereference error.

Fixes: 266c990deb ("HID: Add WinWing Orion2 throttle support")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Charles Han 2024-11-14 17:19:47 +08:00 • committed by Jiri Kosina
parent 05c4ede695
commit 45ab5166a8
1 changed files with 2 additions and 0 deletions
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2
drivers/hid/hid-winwing.c
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@ -106,6 +106,8 @@ static int winwing_init_led(struct hid_device *hdev,
"%s::%s", "%s::%s",
dev_name(&input->dev), dev_name(&input->dev),
info->led_name); info->led_name);
if (!led->cdev.name)
return -ENOMEM;
ret = devm_led_classdev_register(&hdev->dev, &led->cdev); ret = devm_led_classdev_register(&hdev->dev, &led->cdev);
if (ret) if (ret)