Changeset 69961 in vbox for trunk/src/VBox/Devices/USB/win

Timestamp:

Dec 6, 2017 7:29:03 PM (7 years ago)

Author:

vboxsync

Message:

VUSB/win: Report error early if further URBs cannot be queued.

File:

• trunk/src/VBox/Devices/USB/win/USBProxyDevice-win.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/USB/win/USBProxyDevice-win.cpp

@@ -405 +405 @@
     Assert(pPriv);
 
+    /* Don't even bother if we can't wait for that many objects. */
+    if (pPriv->cPendingUrbs + pPriv->cQueuedUrbs >= (MAXIMUM_WAIT_OBJECTS - 1))
+        return VERR_OUT_OF_RESOURCES;
+    if (pPriv->cPendingUrbs >= RT_ELEMENTS(pPriv->aPendingUrbs))
+        return VERR_OUT_OF_RESOURCES;
+
     /*
      * Allocate and initialize a URB queue structure.
@@ -476 +482 @@
             RTCritSectEnter(&pPriv->CritSect);
             unsigned j = pPriv->cPendingUrbs;
+            Assert(j < RT_ELEMENTS(pPriv->aPendingUrbs));
             pPriv->aPendingUrbs[j] = pQUrbWin;
             pPriv->cPendingUrbs++;