diff options
Diffstat (limited to 'drivers/media/dvb/frontends/or51132.c')
| -rw-r--r-- | drivers/media/dvb/frontends/or51132.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c index b6d0eecc59e..78bded861d0 100644 --- a/drivers/media/dvb/frontends/or51132.c +++ b/drivers/media/dvb/frontends/or51132.c @@ -36,6 +36,8 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/string.h> +#include <linux/slab.h> #include <asm/byteorder.h> #include "dvb_frontend.h" @@ -466,6 +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; @@ -501,7 +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; @@ -575,8 +582,7 @@ struct dvb_frontend* or51132_attach(const struct or51132_config* config, return &state->frontend; error: - if (state) - kfree(state); + kfree(state); return NULL; } |