diff options
| author | Ming Lei <tom.leiming@gmail.com> | 2010-09-20 09:32:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-24 20:05:01 +0200 |
| commit | bb27bc2c1133372b54d00f3077ea4acbbf459045 (patch) | |
| tree | 513f4619c3938b98b0e6ba9ad40611f7b2d0f39e /drivers/usb | |
| parent | usb: musb: gadget: fix DMA length for OUT transfer (diff) | |
| download | linux-bb27bc2c1133372b54d00f3077ea4acbbf459045.tar.xz linux-bb27bc2c1133372b54d00f3077ea4acbbf459045.zip | |
usb: musb: gadget: complete request only if data is transfered over
Complete the current request only if the data transfer is over.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index f3ee04f2e17d..fa826f9e262b 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -501,14 +501,14 @@ void musb_g_tx(struct musb *musb, u8 epnum) request->zero = 0; } - /* ... or if not, then complete it. */ - musb_g_giveback(musb_ep, request, 0); - - request = musb_ep->desc ? next_request(musb_ep) : NULL; - if (!request) { - DBG(4, "%s idle now\n", - musb_ep->end_point.name); - return; + if (request->actual == request->length) { + musb_g_giveback(musb_ep, request, 0); + request = musb_ep->desc ? next_request(musb_ep) : NULL; + if (!request) { + DBG(4, "%s idle now\n", + musb_ep->end_point.name); + return; + } } } |