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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: Luis Lloret <luislloret@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Luis Lloret 2007-07-26 10:08:47 -04:00 committed by Greg Kroah-Hartman
parent 468d13623b
commit 88e45dbbab
1 changed files with 4 additions and 3 deletions
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7
drivers/usb/gadget/file_storage.c
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@ -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;
}