Hello Greg Kroah-Hartman:
in drivers/usb/core/message.c:
at line 943, status is kmalloc ( sizeof u16 )
at line 952, assign the value of status to data
at line 953, free status.
it is better to let "u16 status" instead of "u16 *status = kmalloc...".
thanks.
gchen.
940 int usb_get_status(struct usb_device *dev, int type, int target, void *data)
941 {
942 int ret;
943 u16 *status = kmalloc(sizeof(*status), GFP_KERNEL);
944
945 if (!status)
946 return -ENOMEM;
947
948 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
949 USB_REQ_GET_STATUS, USB_DIR_IN | type, 0, target, status,
950 sizeof(*status), USB_CTRL_GET_TIMEOUT);
951
952 *(u16 *)data = *status;
953 kfree(status);
954 return ret;
955 }
956 EXPORT_SYMBOL_GPL(usb_get_status);
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