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path: root/drivers/input/ff-core.c
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Diffstat (limited to 'drivers/input/ff-core.c')
-rw-r--r--drivers/input/ff-core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index eab56c0aacd5..8f2042432c85 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -318,6 +318,11 @@ int input_ff_create(struct input_dev *dev, unsigned int max_effects)
return -EINVAL;
}
+ if (max_effects > FF_MAX_EFFECTS) {
+ dev_err(&dev->dev, "cannot allocate more than FF_MAX_EFFECTS effects\n");
+ return -EINVAL;
+ }
+
ff_dev_size = sizeof(struct ff_device) +
max_effects * sizeof(struct file *);
if (ff_dev_size < max_effects) /* overflow */