[media] media: tuner xc5000 - release firmwware from xc5000_release()

xc5000 releases firmware right after loading it. Change it to
save the firmware and release it from xc5000_release(). This
helps avoid fecthing firmware when forced firmware load requests
come in to change analog tv frequence and when firmware needs to
be reloaded after suspend and resume.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/tuners/xc5000.c

@@ -70,6 +70,8 @@ struct xc5000_priv {
 
 	struct dvb_frontend *fe;
 	struct delayed_work timer_sleep;
+
+	const struct firmware   *firmware;
 };
 
 /* Misc Defines */
@@ -1136,20 +1138,23 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force)
 	if (!force && xc5000_is_firmware_loaded(fe) == 0)
 		return 0;
 
+	if (!priv->firmware) {
 		ret = request_firmware(&fw, desired_fw->name,
 					priv->i2c_props.adap->dev.parent);
 		if (ret) {
-		printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
+			pr_err("xc5000: Upload failed. rc %d\n", ret);
 			return ret;
 		}
-
 		dprintk(1, "firmware read %Zu bytes.\n", fw->size);
 
 		if (fw->size != desired_fw->size) {
-		printk(KERN_ERR "xc5000: Firmware file with incorrect size\n");
-		ret = -EINVAL;
-		goto err;
+			pr_err("xc5000: Firmware file with incorrect size\n");
+			release_firmware(fw);
+			return -EINVAL;
 		}
+		priv->firmware = fw;
+	} else
+		fw = priv->firmware;
 
 	/* Try up to 5 times to load firmware */
 	for (i = 0; i < 5; i++) {
@@ -1232,7 +1237,6 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe, int force)
 	else
 		printk(KERN_CONT " - too many retries. Giving up\n");
 
-	release_firmware(fw);
 	return ret;
 }
 
@@ -1316,6 +1320,8 @@ static int xc5000_release(struct dvb_frontend *fe)
 	if (priv) {
 		cancel_delayed_work(&priv->timer_sleep);
 		hybrid_tuner_release_state(priv);
+		if (priv->firmware)
+			release_firmware(priv->firmware);
 	}
 
 	mutex_unlock(&xc5000_list_mutex);