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usb: musb: unmap reqs in musb_gadget_queue()'s error case 

If the descriptor is missing the reqeust is never unmapped. This patch
changes this and renames the cleanup label to unlock since there is no
cleanup done. The cleanup would revert the allocation of ressource (i.e.
this dma mapping) but it does not, it simply unlocks and returns.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2013-06-19 17:38:15 +02:00 committed by Felipe Balbi
parent f3ce4d5b2d
commit 23a53d9008
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/musb/musb_gadget.c
View File

@ -1266,7 +1266,8 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
dev_dbg(musb->controller, "req %p queued to %s while ep %s\n",
req, ep->name, "disabled");
status = -ESHUTDOWN;
goto cleanup;
unmap_dma_buffer(request, musb);
goto unlock;
}
/* add request to the list */
@ -1276,7 +1277,7 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
if (!musb_ep->busy && &request->list == musb_ep->req_list.next)
musb_ep_restart(musb, request);
cleanup:
unlock:
spin_unlock_irqrestore(&musb->lock, lockflags);
return status;
}