From: Roger Quadros <roger.quadros@xxxxxxxxx>
The ep0 request tag was not recorded thus resulting in phase
problems while sending status/response in handle_execption() handler.
This was resulting in MSC compliance test failures with USBCV tool.
With this patch, the Bulk-Only Mass storage RESET request is
handled correctly and the MSC compliance tests pass.
Signed-off-by: Roger Quadros <roger.quadros@xxxxxxxxx>
Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/gadget/f_mass_storage.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 98d6b390..e9de33d 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -599,6 +599,11 @@ static int fsg_setup(struct usb_function *f,
if (!fsg_is_set(fsg->common))
return -EOPNOTSUPP;
+ ++fsg->common->ep0_req_tag; /* Record arrival of a new request */
+ req->context = NULL;
+ req->length = 0;
+ dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));
+
switch (ctrl->bRequest) {
case USB_BULK_RESET_REQUEST:
--
1.7.4.2
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