diff options
Diffstat (limited to 'drivers/media/dvb/frontends/drxd_hard.c')
| -rw-r--r-- | drivers/media/dvb/frontends/drxd_hard.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/media/dvb/frontends/drxd_hard.c b/drivers/media/dvb/frontends/drxd_hard.c index 2238bf0be95..88e46f4cdbb 100644 --- a/drivers/media/dvb/frontends/drxd_hard.c +++ b/drivers/media/dvb/frontends/drxd_hard.c @@ -889,10 +889,15 @@ static int ReadIFAgc(struct drxd_state *state, u32 * pValue) u32 R2 = state->if_agc_cfg.R2; u32 R3 = state->if_agc_cfg.R3; - u32 Vmax = (3300 * R2) / (R1 + R2); - u32 Rpar = (R2 * R3) / (R3 + R2); - u32 Vmin = (3300 * Rpar) / (R1 + Rpar); - u32 Vout = Vmin + ((Vmax - Vmin) * Value) / 1024; + u32 Vmax, Rpar, Vmin, Vout; + + if (R2 == 0 && (R1 == 0 || R3 == 0)) + return 0; + + Vmax = (3300 * R2) / (R1 + R2); + Rpar = (R2 * R3) / (R3 + R2); + Vmin = (3300 * Rpar) / (R1 + Rpar); + Vout = Vmin + ((Vmax - Vmin) * Value) / 1024; *pValue = Vout; } @@ -926,16 +931,15 @@ static int DownloadMicrocode(struct drxd_state *state, const u8 *pMCImage, u32 Length) { u8 *pSrc; - u16 Flags; u32 Address; u16 nBlocks; u16 BlockSize; - u16 BlockCRC; u32 offset = 0; int i, status = 0; pSrc = (u8 *) pMCImage; - Flags = (pSrc[0] << 8) | pSrc[1]; + /* We're not using Flags */ + /* Flags = (pSrc[0] << 8) | pSrc[1]; */ pSrc += sizeof(u16); offset += sizeof(u16); nBlocks = (pSrc[0] << 8) | pSrc[1]; @@ -952,11 +956,13 @@ static int DownloadMicrocode(struct drxd_state *state, pSrc += sizeof(u16); offset += sizeof(u16); - Flags = (pSrc[0] << 8) | pSrc[1]; + /* We're not using Flags */ + /* u16 Flags = (pSrc[0] << 8) | pSrc[1]; */ pSrc += sizeof(u16); offset += sizeof(u16); - BlockCRC = (pSrc[0] << 8) | pSrc[1]; + /* We're not using BlockCRC */ + /* u16 BlockCRC = (pSrc[0] << 8) | pSrc[1]; */ pSrc += sizeof(u16); offset += sizeof(u16); |