[PATCH] usb: call usb_packet_cleanup on usb_packet_map failure

[Gerd Hoffmann <kraxel@redhat.com>]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb/hcd-ehci.c | 2 ++
 hw/usb/hcd-xhci.c | 1 +
 2 files changed, 3 insertions(+)

diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 2b995443fbfd..67847a9cf5f1 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -1373,6 +1373,7 @@ static int ehci_execute(EHCIPacket *p, const char *action)
         usb_packet_setup(&p->packet, p->pid, ep, 0, p->qtdaddr, spd,
                          (p->qtd.token & QTD_TOKEN_IOC) != 0);
         if (usb_packet_map(&p->packet, &p->sgl)) {
+            usb_packet_cleanup(&p->packet);
             qemu_sglist_destroy(&p->sgl);
             return -1;
         }
@@ -1456,6 +1457,7 @@ static int ehci_process_itd(EHCIState *ehci,
                 usb_packet_setup(&ehci->ipacket, pid, ep, 0, addr, false,
                                  (itd->transact[i] & ITD_XACT_IOC) != 0);
                 if (usb_packet_map(&ehci->ipacket, &ehci->isgl)) {
+                    usb_packet_cleanup(&ehci->ipacket);
                     qemu_sglist_destroy(&ehci->isgl);
                     return -1;
                 }
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 46a2186d912a..9b156048920d 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -1616,6 +1616,7 @@ static int xhci_setup_packet(XHCITransfer *xfer)
     usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid,
                      xfer->trbs[0].addr, false, xfer->int_req);
     if (usb_packet_map(&xfer->packet, &xfer->sgl)) {
+        usb_packet_cleanup(&xfer->packet);
         qemu_sglist_destroy(&xfer->sgl);
         return -1;
     }
-- 
2.27.0