diff mbox

[RESEND/PATCH,5/6] USB: musb-gadget: complete request only if data is transfered over

Message ID 1283873014-32511-6-git-send-email-tom.leiming@gmail.com (mailing list archive)
State New, archived
Delegated to: Felipe Balbi
Headers show

Commit Message

Ming Lei Sept. 7, 2010, 3:23 p.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f3ee04f..fa826f9 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;
+				}
 			}
 		}