openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb: gadget: f_mass_storage: Fix Bulk-only RESET handling 

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@nokia.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Roger Quadros 2011-04-05 18:36:38 +03:00 committed by Greg Kroah-Hartman
parent 654d121ad8
commit 73ee4da994
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/usb/gadget/f_mass_storage.c
View File

@ -599,6 +599,11 @@ static int fsg_setup(struct usb_function *f,
if (!fsg_is_set(fsg->common)) if (!fsg_is_set(fsg->common))
return -EOPNOTSUPP; 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) { switch (ctrl->bRequest) {
case USB_BULK_RESET_REQUEST: case USB_BULK_RESET_REQUEST: