commit 1a3bf41b7165ba294af46bc32483eaad61e707ea
author Erik Gilling <konkers@android.com> Fri Apr 06 14:13:32 2012 -0700
committer Erik Gilling <konkers@android.com> Fri Apr 06 14:13:32 2012 -0700
tree 88620d5b87daea0b83324c29ee40e885d03b4d50
parent a344c2bb4de5396c4012b6215f9ccb9f5d91a868

Fix SurfaceFlinger crash in HWC::eventControl

eventControl was not checking if there was a hwc before callingi
hwc->eventControl

Change-Id: I4d739fc9c0d47da131f4ffc5d50e274de156d012

services/surfaceflinger/DisplayHardware/HWComposer.cpp

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index e742d3e..a6804da 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -105,7 +105,7 @@
 
 status_t HWComposer::eventControl(int event, int enabled) {
     status_t err = NO_ERROR;
-    if (mHwc->common.version >= HWC_DEVICE_API_VERSION_0_3) {
+    if (mHwc && mHwc->common.version >= HWC_DEVICE_API_VERSION_0_3) {
         err = mHwc->methods->eventControl(mHwc, event, enabled);
     } else {
         if (mVSyncThread != NULL) {