1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/media/dvb/frontends/stb0899_drv.c b/drivers/media/dvb/frontends/stb0899_drv.c
index 097e7067f208..dd08f4ac64a8 100644
--- a/drivers/media/dvb/frontends/stb0899_drv.c
+++ b/drivers/media/dvb/frontends/stb0899_drv.c
@@ -67,7 +67,7 @@ static const struct stb0899_tab stb0899_cn_tab[] = {
  * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
  */
 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
-        { -950, -128 },
+        { -750, -128 },
         { -748,  -94 },
         { -745,  -92 },
         { -735,  -90 },
@@ -131,7 +131,7 @@ static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
         { -730, 13645 },
         { -750, 13909 },
         { -766, 14153 },
-        { -999, 16383 }
+        { -950, 16383 }
 };
 
 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
@@ -964,6 +964,7 @@ static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 
         int val;
         u32 reg;
+        *strength = 0;
         switch (state->delsys) {
         case SYS_DVBS:
         case SYS_DSS:
@@ -987,7 +988,7 @@ static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
                         val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
 
                         *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
-                        *strength += 750;
+                        *strength += 950;
                         dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
                                 val & 0x3fff, *strength);
                 }
@@ -1009,6 +1010,7 @@ static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
         u8 buf[2];
         u32 reg;
 
+        *snr = 0;
         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
         switch (state->delsys) {
         case SYS_DVBS: