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authorDan Carpenter <dan.carpenter@oracle.com>2012-07-07 21:17:54 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-07-07 21:20:12 -0400
commit9a932145f2d57bad1092ba006dee9065adc5eb39 (patch)
tree0ca660b7e0dc96f2d917a860351c5b94782840eb /drivers/input
parentc6bd9d465500effa710634876fa9e35581da522d (diff)
Input: ff-memless - fix a couple min_t() casts
envelope->attack_level is a u16 type. We're trying to clamp it here so it's between 0 and 0x7fff. Unfortunately, the cast to __s16 turns all the values larger than 0x7fff into negative numbers and min_t() thinks they are less than 0x7fff. envelope_level is an int so now we've got negative values stored there. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/ff-memless.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 5f558851d646..b107922514fb 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -176,7 +176,7 @@ static int apply_envelope(struct ml_effect_state *state, int value,
176 value, envelope->attack_level); 176 value, envelope->attack_level);
177 time_from_level = jiffies_to_msecs(now - state->play_at); 177 time_from_level = jiffies_to_msecs(now - state->play_at);
178 time_of_envelope = envelope->attack_length; 178 time_of_envelope = envelope->attack_length;
179 envelope_level = min_t(__s16, envelope->attack_level, 0x7fff); 179 envelope_level = min_t(u16, envelope->attack_level, 0x7fff);
180 180
181 } else if (envelope->fade_length && effect->replay.length && 181 } else if (envelope->fade_length && effect->replay.length &&
182 time_after(now, 182 time_after(now,
@@ -184,7 +184,7 @@ static int apply_envelope(struct ml_effect_state *state, int value,
184 time_before(now, state->stop_at)) { 184 time_before(now, state->stop_at)) {
185 time_from_level = jiffies_to_msecs(state->stop_at - now); 185 time_from_level = jiffies_to_msecs(state->stop_at - now);
186 time_of_envelope = envelope->fade_length; 186 time_of_envelope = envelope->fade_length;
187 envelope_level = min_t(__s16, envelope->fade_level, 0x7fff); 187 envelope_level = min_t(u16, envelope->fade_level, 0x7fff);
188 } else 188 } else
189 return value; 189 return value;
190 190