The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx> --- drivers/media/tuners/qm1d1c0042.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/tuners/qm1d1c0042.c b/drivers/media/tuners/qm1d1c0042.c index 83ca5dc..0e26d22 100644 --- a/drivers/media/tuners/qm1d1c0042.c +++ b/drivers/media/tuners/qm1d1c0042.c @@ -206,7 +206,7 @@ static int qm1d1c0042_set_params(struct dvb_frontend *fe) if (ret < 0) return ret; - a = (freq + state->cfg.xtal_freq / 2) / state->cfg.xtal_freq; + a = DIV_ROUND_CLOSEST(freq, state->cfg.xtal_freq); state->regs[0x06] &= 0x40; state->regs[0x06] |= (a - 12) / 4; -- 1.7.12.4
