switch (cmd) {
 
                case LPGETSTATUS:
-                       if ((retval = usblp_read_status(usblp, usblp->statusbuf))) {
+                       retval = usblp_read_status(usblp, usblp->statusbuf);
+                       if (retval) {
                                printk_ratelimited(KERN_ERR "usblp%d:"
                                            "failed reading printer status (%d)\n",
                                            usblp->minor, retval);
        struct urb *urb;
        char *writebuf;
 
-       if ((writebuf = kmalloc(transfer_length, GFP_KERNEL)) == NULL)
+       writebuf = kmalloc(transfer_length, GFP_KERNEL);
+       if (writebuf == NULL)
                return NULL;
-       if ((urb = usb_alloc_urb(0, GFP_KERNEL)) == NULL) {
+       urb = usb_alloc_urb(0, GFP_KERNEL);
+       if (urb == NULL) {
                kfree(writebuf);
                return NULL;
        }
                        transfer_length = USBLP_BUF_SIZE;
 
                rv = -ENOMEM;
-               if ((writeurb = usblp_new_writeurb(usblp, transfer_length)) == NULL)
+               writeurb = usblp_new_writeurb(usblp, transfer_length);
+               if (writeurb == NULL)
                        goto raise_urb;
                usb_anchor_urb(writeurb, &usblp->urbs);
 
        int rc;
 
        rc = -ENOMEM;
-       if ((urb = usb_alloc_urb(0, GFP_KERNEL)) == NULL)
+       urb = usb_alloc_urb(0, GFP_KERNEL);
+       if (urb == NULL)
                goto raise_urb;
 
        usb_fill_bulk_urb(urb, usblp->dev,