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path: root/drivers/media/dvb/frontends/or51211.c
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Diffstat (limited to 'drivers/media/dvb/frontends/or51211.c')
-rw-r--r--drivers/media/dvb/frontends/or51211.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c
index 8a9db23dd1b..531f76246e5 100644
--- a/drivers/media/dvb/frontends/or51211.c
+++ b/drivers/media/dvb/frontends/or51211.c
@@ -339,6 +339,7 @@ static int or51211_read_signal_strength(struct dvb_frontend* fe, u16* strength)
u8 rec_buf[2];
u8 snd_buf[4];
u8 snr_equ;
+ u32 signal_strength;
/* SNR after Equalizer */
snd_buf[0] = 0x04;
@@ -358,8 +359,11 @@ static int or51211_read_signal_strength(struct dvb_frontend* fe, u16* strength)
snr_equ = rec_buf[0] & 0xff;
/* The value reported back from the frontend will be FFFF=100% 0000=0% */
- *strength = (((5334 - i20Log10(snr_equ))/3+5)*65535)/1000;
-
+ signal_strength = (((5334 - i20Log10(snr_equ))/3+5)*65535)/1000;
+ if (signal_strength > 0xffff)
+ *strength = 0xffff;
+ else
+ *strength = signal_strength;
dprintk("read_signal_strength %i\n",*strength);
return 0;