diff options
Diffstat (limited to 'drivers/input/rmi4/rmi_f30.c')
| -rw-r--r-- | drivers/input/rmi4/rmi_f30.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c index 760aff1bc420..485907ff10f4 100644 --- a/drivers/input/rmi4/rmi_f30.c +++ b/drivers/input/rmi4/rmi_f30.c @@ -110,6 +110,10 @@ static int rmi_f30_attention(struct rmi_function *fn, unsigned long *irq_bits) /* Read the gpi led data. */ if (rmi_dev->xport->attn_data) { + if (rmi_dev->xport->attn_size < f30->register_count) { + dev_warn(&fn->dev, "F30 interrupted, but data is missing\n"); + return 0; + } memcpy(f30->data_regs, rmi_dev->xport->attn_data, f30->register_count); rmi_dev->xport->attn_data += f30->register_count; |