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Input: iforce - check array bounds before accessing elements 

Fixes Coverity #id 864

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-07-06 23:55:00 -04:00
parent 95349fe814
commit 8d64d3722c
1 changed files with 9 additions and 9 deletions
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18
drivers/input/joystick/iforce/iforce-main.c
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@ -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;