From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Wed, 10 Apr 2013 12:04:03 +0000 (-0300)
Subject: [media] r820t: better report signal strength
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=75c1819e5e42064e66d4f88a5af628a1604ad52d;p=deliverable%2Flinux.git

[media] r820t: better report signal strength

If signal is zero, shows it as a zero, not as 0xff.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Antti Palosaari <crope@iki.fi>
---

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 5be4635c521d..d5686e8a8bc6 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -1506,6 +1506,8 @@ static int r820t_signal(struct dvb_frontend *fe, u16 *strength)
 
 		/* A higher gain at LNA means a lower signal strength */
 		*strength = (45 - rc) << 4 | 0xff;
+		if (*strength == 0xff)
+			*strength = 0;
 	} else {
 		*strength = 0;
 	}