[media] lbdt3306a: simplify the lock status check

The logic there is too complex and it looks like an inifite
loop.

So, simplify the logic and implement it as a for loop.

This gets rid of the following checkpatch.pl warnings:

WARNING: else is not generally useful after a break or return
+			return LG3306_UNLOCK;
+		} else {

WARNING: else is not generally useful after a break or return
+			return LG3306_UNLOCK;
+		} else {
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/dvb-frontends/lgdt3306a.c

@@ -1461,65 +1461,53 @@ static enum lgdt3306a_lock_status lgdt3306a_vsb_lock_poll(struct lgdt3306a_state
 	u8 packet_error;
 	u32 snr;
 
-	while (1) {
+	for (cnt = 0; cnt < 10; cnt++) {
 		if (lgdt3306a_sync_lock_poll(state) == LG3306_UNLOCK) {
 			dbg_info("no sync lock!\n");
 			return LG3306_UNLOCK;
-		} else {
+		}
+
 		msleep(20);
 		ret = lgdt3306a_pre_monitoring(state);
 		if (ret)
-				return LG3306_UNLOCK;
+			break;
 
 		packet_error = lgdt3306a_get_packet_error(state);
 		snr = lgdt3306a_calculate_snr_x100(state);
-			dbg_info("cnt=%d errors=%d snr=%d\n",
-			       cnt, packet_error, snr);
+		dbg_info("cnt=%d errors=%d snr=%d\n", cnt, packet_error, snr);
 
-			if ((snr < 1500) || (packet_error >= 0xff))
-				cnt++;
-			else
+		if ((snr >= 1500) && (packet_error < 0xff))
 			return LG3306_LOCK;
+	}
 
-			if (cnt >= 10) {
 	dbg_info("not locked!\n");
 	return LG3306_UNLOCK;
-			}
-		}
-	}
-	return LG3306_UNLOCK;
 }
 
 static enum lgdt3306a_lock_status lgdt3306a_qam_lock_poll(struct lgdt3306a_state *state)
 {
-	u8 cnt = 0;
+	u8 cnt;
 	u8 packet_error;
 	u32	snr;
 
-	while (1) {
+	for (cnt = 0; cnt < 10; cnt++) {
 		if (lgdt3306a_fec_lock_poll(state) == LG3306_UNLOCK) {
 			dbg_info("no fec lock!\n");
 			return LG3306_UNLOCK;
-		} else {
+		}
+
 		msleep(20);
 
 		packet_error = lgdt3306a_get_packet_error(state);
 		snr = lgdt3306a_calculate_snr_x100(state);
-			dbg_info("cnt=%d errors=%d snr=%d\n",
-			       cnt, packet_error, snr);
+		dbg_info("cnt=%d errors=%d snr=%d\n", cnt, packet_error, snr);
 
-			if ((snr < 1500) || (packet_error >= 0xff))
-				cnt++;
-			else
+		if ((snr >= 1500) && (packet_error < 0xff))
 			return LG3306_LOCK;
+	}
 
-			if (cnt >= 10) {
 	dbg_info("not locked!\n");
 	return LG3306_UNLOCK;
-			}
-		}
-	}
-	return LG3306_UNLOCK;
 }
 
 static int lgdt3306a_read_status(struct dvb_frontend *fe, fe_status_t *status)