obuf[2] = value;
        ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1);
        if (ret)
-               dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
-                       KBUILD_MODNAME, __func__, ret);
+               dev_err(&d->udev->dev, "failed=%d\n", ret);
        return ret;
 }
 
 
        if (num > 2) {
                dev_err(&d->udev->dev,
-               "dvbsky_usb: too many i2c messages[%d] than 2.", num);
+               "too many i2c messages[%d], max 2.", num);
                ret = -EOPNOTSUPP;
                goto i2c_error;
        }
        if (num == 1) {
                if (msg[0].len > 60) {
                        dev_err(&d->udev->dev,
-                       "dvbsky_usb: too many i2c bytes[%d] than 60.",
+                       "too many i2c bytes[%d], max 60.",
                        msg[0].len);
                        ret = -EOPNOTSUPP;
                        goto i2c_error;
                        ret = dvbsky_usb_generic_rw(d, obuf, 4,
                                        ibuf, msg[0].len + 1);
                        if (ret)
-                               dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
-                                       KBUILD_MODNAME, __func__, ret);
+                               dev_err(&d->udev->dev, "failed=%d\n", ret);
                        if (!ret)
                                memcpy(msg[0].buf, &ibuf[1], msg[0].len);
                } else {
                        ret = dvbsky_usb_generic_rw(d, obuf,
                                        msg[0].len + 3, ibuf, 1);
                        if (ret)
-                               dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
-                                       KBUILD_MODNAME, __func__, ret);
+                               dev_err(&d->udev->dev, "failed=%d\n", ret);
                }
        } else {
                if ((msg[0].len > 60) || (msg[1].len > 60)) {
                        dev_err(&d->udev->dev,
-                       "dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.",
+                       "too many i2c bytes[w-%d][r-%d], max 60.",
                        msg[0].len, msg[1].len);
                        ret = -EOPNOTSUPP;
                        goto i2c_error;
                ret = dvbsky_usb_generic_rw(d, obuf,
                        msg[0].len + 4, ibuf, msg[1].len + 1);
                if (ret)
-                       dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
-                               KBUILD_MODNAME, __func__, ret);
+                       dev_err(&d->udev->dev, "failed=%d\n", ret);
 
                if (!ret)
                        memcpy(msg[1].buf, &ibuf[1], msg[1].len);
        obuf[0] = 0x10;
        ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2);
        if (ret)
-               dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
-                       KBUILD_MODNAME, __func__, ret);
+               dev_err(&d->udev->dev, "failed=%d\n", ret);
        if (ret == 0)
                code = (ibuf[0] << 8) | ibuf[1];
        if (code != 0xffff) {