commit 7306c670eb3ddb471d983a7458eb9f522afd0763
author Michael Lentine <mlentine@google.com> Wed Jul 30 13:00:37 2014 -0700
committer Michael Lentine <mlentine@google.com> Wed Jul 30 14:36:25 2014 -0700
tree 74d23c708ec634eb168ba8f8b44f7a74b67a36b7
parent 47e45405d1533aa73307014f7bf371e118695cf3

Add error for format and make sure setActiveConfig fails with an invalid mode.

Change-Id: Iacdb5cbad125787f96c64c88d432fc541c4cad1a

services/surfaceflinger/Android.mk

diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index f279491..183478d 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -83,7 +83,7 @@
     LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=0
 endif
 
-LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -fvisibility=hidden -Werror=format
 LOCAL_CFLAGS += -std=c++11
 
 LOCAL_SHARED_LIBRARIES := \

services/surfaceflinger/SurfaceFlinger.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 6a034ec..63ee4e3 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -637,10 +637,16 @@
                                int mode) :
             mFlinger(flinger), mDisplay(disp) { mMode = mode; }
         virtual bool handler() {
+            Vector<DisplayInfo> configs;
+            mFlinger.getDisplayConfigs(mDisplay, &configs);
+            if(mMode < 0 || mMode >= configs.size()) {
+                ALOGE("Attempt to set active config = %d for display with %d configs",
+                        mMode, configs.size());
+            }
             sp<DisplayDevice> hw(mFlinger.getDisplayDevice(mDisplay));
             if (hw == NULL) {
                 ALOGE("Attempt to set active config = %d for null display %p",
-                        mDisplay.get(), mMode);
+                        mMode, mDisplay.get());
             } else if (hw->getDisplayType() >= DisplayDevice::DISPLAY_VIRTUAL) {
                 ALOGW("Attempt to set active config = %d for virtual display",
                         mMode);
@@ -2267,7 +2273,7 @@
             sp<DisplayDevice> hw(mFlinger.getDisplayDevice(mDisplay));
             if (hw == NULL) {
                 ALOGE("Attempt to set power mode = %d for null display %p",
-                        mDisplay.get(), mMode);
+                        mMode, mDisplay.get());
             } else if (hw->getDisplayType() >= DisplayDevice::DISPLAY_VIRTUAL) {
                 ALOGW("Attempt to set power mode = %d for virtual display",
                         mMode);