1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 2e1338a5d488..5e6c888b4928 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -567,6 +567,7 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level,
         enum pipe pipe = intel_get_pipe_from_connector(connector);
         u32 freq;
         unsigned long flags;
+        u64 n;
 
         if (!panel->backlight.present || pipe == INVALID_PIPE)
                 return;
@@ -577,10 +578,9 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level,
 
         /* scale to hardware max, but be careful to not overflow */
         freq = panel->backlight.max;
-        if (freq < max)
-                level = level * freq / max;
-        else
-                level = freq / max * level;
+        n = (u64)level * freq;
+        do_div(n, max);
+        level = n;
 
         panel->backlight.level = level;
         if (panel->backlight.device)