Patchwork [2/2] usb-host: fix splitted transfers

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Submitter Gerd Hoffmann
Date Nov. 15, 2012, 3:19 p.m.
Message ID <1352992763-31409-2-git-send-email-kraxel@redhat.com>
Download mbox | patch
Permalink /patch/199329/
State New
Headers show

Comments

Gerd Hoffmann - Nov. 15, 2012, 3:19 p.m.
USBPacket->actual_length wasn't updated correctly for USBPackets
splitted into multiple urbs.  Fix it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/host-linux.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

Patch

diff --git a/hw/usb/host-linux.c b/hw/usb/host-linux.c
index e3d394f..aa77b77 100644
--- a/hw/usb/host-linux.c
+++ b/hw/usb/host-linux.c
@@ -366,8 +366,11 @@  static void async_complete(void *opaque)
         if (p) {
             switch (aurb->urb.status) {
             case 0:
-                p->actual_length = aurb->urb.actual_length;
-                p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */
+                p->actual_length += aurb->urb.actual_length;
+                if (!aurb->more) {
+                    /* Clear previous ASYNC status */
+                    p->status = USB_RET_SUCCESS;
+                }
                 break;
 
             case -EPIPE: