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Input: force feedback - make sure effect is present before playing

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Make sure that requested effect id is not out of range for the
device and that effect is present before requesting device to
play it.

Reported-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2007-05-03 00:51:10 -04:00
parent 84767d00a8
commit dec3eb01c2
1 changed files with 2 additions and 1 deletions
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3
drivers/input/ff-core.c
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@ -281,7 +281,8 @@ int input_ff_event(struct input_dev *dev, unsigned int type,
break;
default:
ff->playback(dev, code, value);
if (check_effect_access(ff, code, NULL) == 0)
ff->playback(dev, code, value);
break;
}