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path: root/drivers/input/touchscreen/sur40.c
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Diffstat (limited to 'drivers/input/touchscreen/sur40.c')
-rw-r--r--drivers/input/touchscreen/sur40.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index aefb6e11f88a..4c0eecae065c 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -527,6 +527,9 @@ static int sur40_probe(struct usb_interface *interface,
if (iface_desc->desc.bInterfaceClass != 0xFF)
return -ENODEV;
+ if (iface_desc->desc.bNumEndpoints < 5)
+ return -ENODEV;
+
/* Use endpoint #4 (0x86). */
endpoint = &iface_desc->endpoint[4].desc;
if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)