diff options
| author | Michal Nazarewicz <m.nazarewicz@samsung.com> | 2010-01-27 13:14:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 01:54:50 +0300 |
| commit | b00ce11f00c9e86442de000e8bd3dd42f089c8e1 (patch) | |
| tree | 437cb34e5041d9fe97c62ce33a90ce011af92149 | |
| parent | 7f1ee82695654faf0a93fc0abf3b08eb354ef1f6 (diff) | |
| download | linux-b00ce11f00c9e86442de000e8bd3dd42f089c8e1.tar.xz | |
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>
| -rw-r--r-- | drivers/usb/gadget/f_mass_storage.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 0a18d446e9dd..3c835503ffb1 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -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: |