V4L/DVB: xc3028: fix regression in firmware loading time

Fix a regression in the firmware loading time where it went from 1080 ms to
4700 ms.  This was noticed when the em28xx based HVR-950 took noticably longer
to load the driver.

Regression introduced in hg 12824.  The developer added an msleep() call with
an argument based on a newly introduced xc3028_ctrl field, which is left
initialized to zero for pretty much every board that is currently supported.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/tuner-xc2028.c

@@ -100,7 +100,8 @@ struct xc2028_data {
 	if (size != _rc)						\
 		tuner_info("i2c output error: rc = %d (should be %d)\n",\
 			   _rc, (int)size);				\
-	msleep(priv->ctrl.msleep);					\
+	if (priv->ctrl.msleep)						\
+		msleep(priv->ctrl.msleep);				\
 	_rc;								\
 })
 
@@ -120,7 +121,8 @@ struct xc2028_data {
 	if (isize != _rc)						\
 		tuner_err("i2c input error: rc = %d (should be %d)\n",	\
 			   _rc, (int)isize); 				\
-	msleep(priv->ctrl.msleep);					\
+	if (priv->ctrl.msleep)						\
+		msleep(priv->ctrl.msleep);				\
 	_rc;								\
 })
 
@@ -131,7 +133,7 @@ struct xc2028_data {
 			(_rc = tuner_i2c_xfer_send(&priv->i2c_props,	\
 						_val, sizeof(_val)))) {	\
 		tuner_err("Error on line %d: %d\n", __LINE__, _rc);	\
-	} else 								\
+	} else if (priv->ctrl.msleep)					\
 		msleep(priv->ctrl.msleep);				\
 	_rc;								\
 })
@@ -1009,7 +1011,8 @@ static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
 	   The reset CLK is needed only with tm6000.
 	   Driver should work fine even if this fails.
 	 */
-	msleep(priv->ctrl.msleep);
+	if (priv->ctrl.msleep)
+		msleep(priv->ctrl.msleep);
 	do_tuner_callback(fe, XC2028_RESET_CLK, 1);
 
 	msleep(10);