The driver is using -1 instead of the -ENOMEM defined macro to specify that a buffer allocation failed. Using the correct error code is more intuitive. Smatch tool warning: drivers/hid/usbhid/hiddev.c:894 hiddev_connect() warn: returning -1 instead of -ENOMEM is sloppy No functional change, just more standardized. Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx> Signed-off-by: Yang Li <yang.lee@xxxxxxxxxxxxxxxxx> --- drivers/hid/usbhid/hiddev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index 45e0b1c..88020f3 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -891,7 +891,7 @@ int hiddev_connect(struct hid_device *hid, unsigned int force) } if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL))) - return -1; + return -ENOMEM; init_waitqueue_head(&hiddev->wait); INIT_LIST_HEAD(&hiddev->list); -- 1.8.3.1