[media] dib8000: fix compilation error

As reported by  kbuild test robot <fengguang.wu@intel.com>:

with a random config:

   drivers/built-in.o: In function `dib8000_get_time_us.isra.16':
>> dib8000.c:(.text+0x3075aa): undefined reference to `__udivdi3'

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index 7539d7af2cf78c2cc6d5fa199243b9123f905ba2..481ee49e6a377489ec4f524c1a730945423d5317 100644 (file)
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -3951,7 +3951,7 @@ static u32 dib8000_get_time_us(struct dvb_frontend *fe, int layer)
        struct dib8000_state *state = fe->demodulator_priv;
        struct dtv_frontend_properties *c = &state->fe[0]->dtv_property_cache;
        int ini_layer, end_layer, i;
-       u64 time_us;
+       u64 time_us, tmp64;
        u32 tmp, denom;
        int guard, rate_num, rate_denum, bits_per_symbol, nsegs;
        int interleaving, fft_div;
@@ -4048,7 +4048,9 @@ static u32 dib8000_get_time_us(struct dvb_frontend *fe, int layer)
 
        /* Estimate the period for the total bit rate */
        time_us = rate_denum * (1008 * 1562500L);
-       time_us = time_us + time_us / guard;
+       tmp64 = time_us;
+       do_div(tmp64, guard);
+       time_us = time_us + tmp64;
        time_us += denom / 2;
        do_div(time_us, denom);