Commit 88e45dbb authored by Luis Lloret's avatar Luis Lloret Committed by Greg Kroah-Hartman

USB: Stall control endpoint when file storage class request wValue != 0

This patch makes the File Storage Gadget stall the control endpoint
when a MSC class request is made with wValue != 0.  This change makes
some MSC compliance test warnings disappear.
Signed-off-by: default avatarLuis Lloret <luislloret@gmail.com>
Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 468d1362
......@@ -1295,6 +1295,7 @@ static int class_setup_req(struct fsg_dev *fsg,
struct usb_request *req = fsg->ep0req;
int value = -EOPNOTSUPP;
u16 w_index = le16_to_cpu(ctrl->wIndex);
u16 w_value = le16_to_cpu(ctrl->wValue);
u16 w_length = le16_to_cpu(ctrl->wLength);
if (!fsg->config)
......@@ -1308,7 +1309,7 @@ static int class_setup_req(struct fsg_dev *fsg,
if (ctrl->bRequestType != (USB_DIR_OUT |
USB_TYPE_CLASS | USB_RECIP_INTERFACE))
break;
if (w_index != 0) {
if (w_index != 0 || w_value != 0) {
value = -EDOM;
break;
}
......@@ -1324,7 +1325,7 @@ static int class_setup_req(struct fsg_dev *fsg,
if (ctrl->bRequestType != (USB_DIR_IN |
USB_TYPE_CLASS | USB_RECIP_INTERFACE))
break;
if (w_index != 0) {
if (w_index != 0 || w_value != 0) {
value = -EDOM;
break;
}
......@@ -1343,7 +1344,7 @@ static int class_setup_req(struct fsg_dev *fsg,
if (ctrl->bRequestType != (USB_DIR_OUT |
USB_TYPE_CLASS | USB_RECIP_INTERFACE))
break;
if (w_index != 0) {
if (w_index != 0 || w_value != 0) {
value = -EDOM;
break;
}
......
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