diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index ac9a406250c5..137101960690 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1285,13 +1285,13 @@ EXPORT_SYMBOL(drm_mode_set_name);
  */
 int drm_mode_vrefresh(const struct drm_display_mode *mode)
 {
-	unsigned int num, den;
+	u64 num, den;
 
 	if (mode->htotal == 0 || mode->vtotal == 0)
 		return 0;
 
-	num = mode->clock;
-	den = mode->htotal * mode->vtotal;
+	num = mul_u32_u32(mode->clock, 1000);
+	den = mul_u32_u32(mode->htotal, mode->vtotal);
 
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 		num *= 2;
@@ -1300,7 +1300,10 @@ int drm_mode_vrefresh(const struct drm_display_mode *mode)
 	if (mode->vscan > 1)
 		den *= mode->vscan;
 
-	return DIV_ROUND_CLOSEST_ULL(mul_u32_u32(num, 1000), den);
+	if (unlikely(den > UINT_MAX))
+		return DIV64_U64_ROUND_CLOSEST(num, den);
+
+	return DIV_ROUND_CLOSEST_ULL(num, (u32) den);
 }
 EXPORT_SYMBOL(drm_mode_vrefresh);