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* [PATCH] input: ff-memless: don't schedule already playing effect to play again
@ 2014-03-02 11:35 Felix Rueegg
  2014-03-02 13:17 ` Elias Vanderstuyft
  2014-03-04 17:07 ` Dmitry Torokhov
  0 siblings, 2 replies; 7+ messages in thread
From: Felix Rueegg @ 2014-03-02 11:35 UTC (permalink / raw)
  To: Dmitry Torokhov; +Cc: linux-input, linux-kernel, Felix Rueegg

When an effect with zero replay length, zero replay delay
and zero envelope attack length is uploaded, it is played and then scheduled to play
again one timer tick later. This triggers a warning (URB submitted while
active) in combination with the xpad driver.

Skipping the rescheduling of this effect fixes the issue.

Signed-off-by: Felix Rueegg <felix.rueegg@gmail.com>
---
 drivers/input/ff-memless.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 74c0d8c..2e06948 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -139,10 +139,13 @@ static void ml_schedule_timer(struct ml_device *ml)
 		if (!test_bit(FF_EFFECT_STARTED, &state->flags))
 			continue;
 
-		if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+		if (test_bit(FF_EFFECT_PLAYING, &state->flags)) {
 			next_at = calculate_next_time(state);
-		else
+			if (next_at == now)
+				continue;
+		} else {
 			next_at = state->play_at;
+		}
 
 		if (time_before_eq(now, next_at) &&
 		    (++events == 1 || time_before(next_at, earliest)))
-- 
1.9.0


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2014-03-06 18:05 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-03-02 11:35 [PATCH] input: ff-memless: don't schedule already playing effect to play again Felix Rueegg
2014-03-02 13:17 ` Elias Vanderstuyft
     [not found]   ` <1452937.KaXPu2ynQ6@sigyn>
2014-03-02 13:36     ` Fwd: " Elias Vanderstuyft
2014-03-02 13:36       ` Elias Vanderstuyft
2014-03-02 13:37   ` Michal Malý
2014-03-04 17:07 ` Dmitry Torokhov
2014-03-06 18:05   ` Felix Rueegg

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