Input: ff-memless - another fix for signed to unsigned overflow

[safe/jmp/linux-2.6] / drivers / input / ff-memless.c

diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index decc51f..9667a5f 100644 (file)
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -225,7 +225,7 @@ static int get_compatible_type(struct ff_device *ff, int effect_type)
  */
 static void ml_combine_effects(struct ff_effect *effect,
                               struct ml_effect_state *state,
-                              unsigned int gain)
+                              int gain)
 {
        struct ff_effect *new = state->effect;
        unsigned int strong, weak, i;
@@ -252,8 +252,8 @@ static void ml_combine_effects(struct ff_effect *effect,
                break;
 
        case FF_RUMBLE:
-               strong = new->u.rumble.strong_magnitude * gain / 0xffff;
-               weak = new->u.rumble.weak_magnitude * gain / 0xffff;
+               strong = (u32)new->u.rumble.strong_magnitude * gain / 0xffff;
+               weak = (u32)new->u.rumble.weak_magnitude * gain / 0xffff;
                effect->u.rumble.strong_magnitude =
                        min(strong + effect->u.rumble.strong_magnitude,
                            0xffffU);