Avoid crashing

Bug: 22202631
Change-Id: I1980f77ae4300dbd19d6829dc5974bab0b88d612
diff --git a/src/com/android/settings/applications/InstalledAppDetails.java b/src/com/android/settings/applications/InstalledAppDetails.java
index 842660b..94705d2 100755
--- a/src/com/android/settings/applications/InstalledAppDetails.java
+++ b/src/com/android/settings/applications/InstalledAppDetails.java
@@ -346,7 +346,7 @@
         mMemoryPreference.setOnPreferenceClickListener(this);
 
         mLaunchPreference = findPreference(KEY_LAUNCH);
-        if (mAppEntry.info != null) {
+        if (mAppEntry != null && mAppEntry.info != null) {
             if ((mAppEntry.info.flags&ApplicationInfo.FLAG_INSTALLED) == 0 ||
                     !mAppEntry.info.enabled) {
                 mLaunchPreference.setEnabled(false);