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path: root/drivers/usb/gadget/composite.c
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Diffstat (limited to 'drivers/usb/gadget/composite.c')
-rw-r--r--drivers/usb/gadget/composite.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index f2da0269e1b1..5d11c291f1ad 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -683,6 +683,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
struct usb_request *req = cdev->req;
int value = -EOPNOTSUPP;
u16 w_index = le16_to_cpu(ctrl->wIndex);
+ u8 intf = w_index & 0xFF;
u16 w_value = le16_to_cpu(ctrl->wValue);
u16 w_length = le16_to_cpu(ctrl->wLength);
struct usb_function *f = NULL;
@@ -769,10 +770,10 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
goto unknown;
if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES)
break;
- f = cdev->config->interface[w_index];
+ f = cdev->config->interface[intf];
if (!f)
break;
- if (w_value && !f->get_alt)
+ if (w_value && !f->set_alt)
break;
value = f->set_alt(f, w_index, w_value);
break;
@@ -781,7 +782,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
goto unknown;
if (!cdev->config || w_index >= MAX_CONFIG_INTERFACES)
break;
- f = cdev->config->interface[w_index];
+ f = cdev->config->interface[intf];
if (!f)
break;
/* lots of interfaces only need altsetting zero... */
@@ -808,7 +809,7 @@ unknown:
*/
if ((ctrl->bRequestType & USB_RECIP_MASK)
== USB_RECIP_INTERFACE) {
- f = cdev->config->interface[w_index];
+ f = cdev->config->interface[intf];
if (f && f->setup)
value = f->setup(f, ctrl);
else