diff mbox

[RESEND/PATCH,4/6] USB: musb-gadget: fix DMA length for OUT transfer

Message ID 1283873014-32511-5-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 176e127..f3ee04f 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -659,10 +659,11 @@  static void rxstate(struct musb *musb, struct musb_request *req)
 				if (request->actual < request->length) {
 					int transfer_size = 0;
 #ifdef USE_MODE1
-					transfer_size = min(request->length,
+					transfer_size = min(request->length - request->actual,
 							channel->max_len);
 #else
-					transfer_size = len;
+					transfer_size = min(request->length - request->actual,
+							(unsigned)len);
 #endif
 					if (transfer_size <= musb_ep->packet_sz)
 						musb_ep->dma->desired_mode = 0;