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path: root/drivers/input/tablet/pegasus_notetaker.c
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Diffstat (limited to 'drivers/input/tablet/pegasus_notetaker.c')
-rw-r--r--drivers/input/tablet/pegasus_notetaker.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/input/tablet/pegasus_notetaker.c b/drivers/input/tablet/pegasus_notetaker.c
index d836d3dcc6a2..a68da2988f9c 100644
--- a/drivers/input/tablet/pegasus_notetaker.c
+++ b/drivers/input/tablet/pegasus_notetaker.c
@@ -296,6 +296,12 @@ static int pegasus_probe(struct usb_interface *intf,
pegasus->intf = intf;
pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+ /* Sanity check that pipe's type matches endpoint's type */
+ if (usb_pipe_type_check(dev, pipe)) {
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
pegasus->data_len = usb_maxpacket(dev, pipe);
pegasus->data = usb_alloc_coherent(dev, pegasus->data_len, GFP_KERNEL,