[media] rtl2832_sdr: remove plain 64-bit divisions

Commit 0ba2aeb6dab80920edd9cf5b93b1ea4d6913b8f3
(v4l2-ctrls: increase internal min/max/step/def to 64 bit)
changes v4l2 controls to 64-bit. Driver it not working on 32-bit
arch as it uses directly control 'step' which is changed to 64-bit.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index f58bd746d82334df7d3b62ac6d5786a572aa7988..023e0f49c786e732450b346ce50df9c7a1985e50 100644 (file)
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -1364,17 +1364,16 @@ static int rtl2832_sdr_s_ctrl(struct v4l2_ctrl *ctrl)
                /* TODO: these controls should be moved to tuner drivers */
                if (s->bandwidth_auto->val) {
                        /* Round towards the closest legal value */
-                       s32 val = s->f_adc + s->bandwidth->step / 2;
+                       s32 val = s->f_adc + div_u64(s->bandwidth->step, 2);
                        u32 offset;
 
                        val = clamp_t(s32, val, s->bandwidth->minimum,
                                      s->bandwidth->maximum);
                        offset = val - s->bandwidth->minimum;
                        offset = s->bandwidth->step *
-                               (offset / s->bandwidth->step);
+                               div_u64(offset, s->bandwidth->step);
                        s->bandwidth->val = s->bandwidth->minimum + offset;
                }
-
                c->bandwidth_hz = s->bandwidth->val;
 
                if (!test_bit(POWER_ON, &s->flags))