[PATCH] media: vimc: Replace do_div() with div64_u64()

[Chen Changcheng]

do_div() expects a 32-bit divisor, but pixel_rate is u64.
This can lead to truncation on 64-bit platforms where
pixel_rate exceeds 32 bits. Use div64_u64() which handles
64-by-64 division safely.

This fixes the Coccinelle warning:
drivers/media/test-drivers/vimc/vimc-sensor.c:107:1-7:
	WARNING: do_div() does a 64-by-32 division,
	please consider using div64_u64 instead.

Fixes: ec1e620b2454 ("media: vimc: sensor: Add pixel_rate,vblank and hblank configuration")
Signed-off-by: Chen Changcheng <chenchangcheng@xxxxxxxxxx>
---
 drivers/media/test-drivers/vimc/vimc-sensor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/test-drivers/vimc/vimc-sensor.c b/drivers/media/test-drivers/vimc/vimc-sensor.c
index 5deebcc78a33..3ac797fa9921 100644
--- a/drivers/media/test-drivers/vimc/vimc-sensor.c
+++ b/drivers/media/test-drivers/vimc/vimc-sensor.c
@@ -104,7 +104,7 @@ static int vimc_sensor_update_frame_timing(struct v4l2_subdev *sd,
 	u64 frame_interval_ns;
 
 	frame_interval_ns = total_pixels * NSEC_PER_SEC;
-	do_div(frame_interval_ns, pixel_rate);
+	frame_interval_ns = div64_u64(frame_interval_ns, pixel_rate);
 	vsensor->hw.fps_jiffies = nsecs_to_jiffies(frame_interval_ns);
 	if (vsensor->hw.fps_jiffies == 0)
 		vsensor->hw.fps_jiffies = 1;
-- 
2.25.1