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| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-07-07 05:55:00 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-07-07 05:55:00 +0200 |
| commit | 8d64d3722c6abbb43bccd518ececc5559e1962b4 (patch) | |
| tree | c276cfd7db4e10bb3544937c286512b0610c1f17 | |
| parent | Input: libps2 - warn instead of oopsing when passed bad arguments (diff) | |
| download | linux-8d64d3722c6abbb43bccd518ececc5559e1962b4.tar.xz linux-8d64d3722c6abbb43bccd518ececc5559e1962b4.zip | |
Input: iforce - check array bounds before accessing elements
Fixes Coverity #id 864
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| -rw-r--r-- | drivers/input/joystick/iforce/iforce-main.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c index 6d99e3c37884..dc6cfea23866 100644 --- a/drivers/input/joystick/iforce/iforce-main.c +++ b/drivers/input/joystick/iforce/iforce-main.c @@ -222,22 +222,22 @@ static int iforce_erase_effect(struct input_dev *dev, int effect_id) int err = 0; struct iforce_core_effect* core_effect; - /* Check who is trying to erase this effect */ - if (iforce->core_effects[effect_id].owner != current->pid) { - printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner); - return -EACCES; - } - if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX) return -EINVAL; - core_effect = iforce->core_effects + effect_id; + core_effect = &iforce->core_effects[effect_id]; + + /* Check who is trying to erase this effect */ + if (core_effect->owner != current->pid) { + printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, core_effect->owner); + return -EACCES; + } if (test_bit(FF_MOD1_IS_USED, core_effect->flags)) - err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk)); + err = release_resource(&core_effect->mod1_chunk); if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags)) - err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk)); + err = release_resource(&core_effect->mod2_chunk); /*TODO: remember to change that if more FF_MOD* bits are added */ core_effect->flags[0] = 0; |