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USB: g_mass_storage: superfluous and missing packets fixed 

The mass storage function responded needlessly to a set
configuration packet.  This was a leftover from converting
gadget (file storage gadget) into a composite function.

Moreover, it has failed to respond to get max LUN request.
Adding request queueing made the function work better.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michal Nazarewicz 2010-01-27 11:14:28 +01:00 committed by Greg Kroah-Hartman
parent 7f1ee82695
commit b00ce11f00
1 changed files with 6 additions and 9 deletions
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15
drivers/usb/gadget/f_mass_storage.c
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@ -618,7 +618,12 @@ static int fsg_setup(struct usb_function *f,
return -EDOM;
VDBG(fsg, "get max LUN\n");
*(u8 *) req->buf = fsg->common->nluns - 1;
return 1;
/* Respond with data/status */
req->length = min(1, w_length);
fsg->common->ep0req_name =
ctrl->bRequestType & USB_DIR_IN ? "ep0-in" : "ep0-out";
return ep0_queue(fsg->common);
}
VDBG(fsg,
@ -2528,14 +2533,6 @@ static void handle_exception(struct fsg_common *common)
case FSG_STATE_CONFIG_CHANGE:
rc = do_set_config(common, new_config);
if (common->ep0_req_tag != exception_req_tag)
break;
if (rc != 0) { /* STALL on errors */
DBG(common, "ep0 set halt\n");
usb_ep_set_halt(common->ep0);
} else { /* Complete the status stage */
ep0_queue(common);
}
break;
case FSG_STATE_EXIT: