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path: root/drivers/media/dvb/frontends/or51132.c
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Diffstat (limited to 'drivers/media/dvb/frontends/or51132.c')
-rw-r--r--drivers/media/dvb/frontends/or51132.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c
index 817b044c7fd..78bded861d0 100644
--- a/drivers/media/dvb/frontends/or51132.c
+++ b/drivers/media/dvb/frontends/or51132.c
@@ -468,6 +468,7 @@ static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
unsigned char snd_buf[2];
u8 rcvr_stat;
u16 snr_equ;
+ u32 signal_strength;
int usK;
snd_buf[0]=0x04;
@@ -503,7 +504,11 @@ static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
usK = (rcvr_stat & 0x10) ? 3 : 0;
/* The value reported back from the frontend will be FFFF=100% 0000=0% */
- *strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000;
+ signal_strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000;
+ if (signal_strength > 0xffff)
+ *strength = 0xffff;
+ else
+ *strength = signal_strength;
dprintk("read_signal_strength %i\n",*strength);
return 0;
@@ -577,8 +582,7 @@ struct dvb_frontend* or51132_attach(const struct or51132_config* config,
return &state->frontend;
error:
- if (state)
- kfree(state);
+ kfree(state);
return NULL;
}