diff options
Diffstat (limited to 'drivers/input/ff-core.c')
| -rw-r--r-- | drivers/input/ff-core.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c index 3367f760d75..f50f6dd9227 100644 --- a/drivers/input/ff-core.c +++ b/drivers/input/ff-core.c @@ -138,8 +138,8 @@ int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, if (effect->id == -1) { for (id = 0; id < ff->max_effects; id++) - if (!ff->effect_owners[id]) - break; + if (!ff->effect_owners[id]) + break; if (id >= ff->max_effects) { ret = -ENOSPC; @@ -309,9 +309,10 @@ EXPORT_SYMBOL_GPL(input_ff_event); * Once ff device is created you need to setup its upload, erase, * playback and other handlers before registering input device */ -int input_ff_create(struct input_dev *dev, int max_effects) +int input_ff_create(struct input_dev *dev, unsigned int max_effects) { struct ff_device *ff; + size_t ff_dev_size; int i; if (!max_effects) { @@ -319,8 +320,12 @@ int input_ff_create(struct input_dev *dev, int max_effects) return -EINVAL; } - ff = kzalloc(sizeof(struct ff_device) + - max_effects * sizeof(struct file *), GFP_KERNEL); + ff_dev_size = sizeof(struct ff_device) + + max_effects * sizeof(struct file *); + if (ff_dev_size < max_effects) /* overflow */ + return -EINVAL; + + ff = kzalloc(ff_dev_size, GFP_KERNEL); if (!ff) return -ENOMEM; |