Fps bigger than 0.000232829 fps, this fits in a 32 bit us_per_frame. There is no need to do a 64 bit division here. Also, the driver only works with whole fps. Found by cocci: drivers/media/platform/qcom/venus/vdec.c:488:1-7: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead. Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> --- drivers/media/platform/qcom/venus/vdec.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index 6b8906ced6bc..88f6b5a3a4fe 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -464,7 +464,7 @@ static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) struct venus_inst *inst = to_inst(file); struct v4l2_captureparm *cap = &a->parm.capture; struct v4l2_fract *timeperframe = &cap->timeperframe; - u64 us_per_frame, fps; + u64 us_per_frame; if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE && a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) @@ -486,10 +486,7 @@ static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) if (!us_per_frame || us_per_frame > USEC_PER_SEC) return -EINVAL; - fps = (u64)USEC_PER_SEC; - do_div(fps, us_per_frame); - - inst->fps = fps; + inst->fps = USEC_PER_SEC / (u32)us_per_frame; timeperframe->numerator = 1; timeperframe->denominator = inst->fps; -- 2.47.1.613.gc27f4b7a9f-goog
