Changeset 62211 in vbox

Timestamp:

Jul 13, 2016 9:12:03 AM (9 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

108720

Message:

USB/DrvVUSBRootHub: Fix possible division by 0

File:

• trunk/src/VBox/Devices/USB/DrvVUSBRootHub.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/USB/DrvVUSBRootHub.cpp

@@ -468 +468 @@
     }
 
-    if (uNewFrameRate != pThis->uFrameRate)
+    if (   uNewFrameRate != pThis->uFrameRate
+        && uNewFrameRate)
     {
         LogFlow(("Frame rate changed from %u to %u\n", pThis->uFrameRate, uNewFrameRate));
@@ -553 +554 @@
             rc = RTSemEventMultiWait(pThis->hSemEventPeriodFrame, RT_INDEFINITE_WAIT);
             RTSemEventMultiReset(pThis->hSemEventPeriodFrame);
+
+            /*
+             * Notify the device above about the frame rate changed if we are supposed to
+             * process frames.
+             */
+            uint32_t uFrameRate = ASMAtomicReadU32(&pThis->uFrameRateDefault);
+            if (uFrameRate)
+                vusbRhR3CalcTimerIntervals(pThis, uFrameRate);
         }