1.安全优化。

2024-01-18 07:57:24 +08:00
parent 9c8e16a9ed
commit bbf06b160d
2 changed files with 9 additions and 6 deletions
--- a/device/pwm.c
+++ b/device/pwm.c
@@ -209,8 +209,9 @@ static ssize_t mr_pwm_write(struct mr_dev *dev, int off, const void *buf, size_t
    for (wr_size = 0; wr_size < size; wr_size += sizeof(*wr_buf))
    {
        /* Calculate the compare value */
-        uint32_t compare_value = (uint32_t)(((float)*wr_buf / 1000000.0f) * (float)(pwm->period));
-        MR_BOUND(compare_value, 0, pwm->period);
+        uint32_t compare_value = MR_BOUND((uint32_t)(((float)*wr_buf / 1000000.0f) * (float)(pwm->period)),
+                                          0,
+                                          pwm->period);
        ops->write(pwm, off, compare_value);
        wr_buf++;
    }