Follow raw pointer and sp<> conventions

Unconditional delete for raw pointers.
Use "if (sp != 0)" not "if (sp.get() != 0)" or "if (sp != NULL)".
Use "if (raw != NULL)" not "if (raw)".

Change-Id: I531a8da7c37149261ed2f34b862ec4896a4b785b
diff --git a/media/libmedia/IAudioFlinger.cpp b/media/libmedia/IAudioFlinger.cpp
index c3252e7..4507e5d 100644
--- a/media/libmedia/IAudioFlinger.cpp
+++ b/media/libmedia/IAudioFlinger.cpp
@@ -559,7 +559,7 @@
         if (status != NO_ERROR) {
             return status;
         }
-        if (numEffects) {
+        if (numEffects != NULL) {
             *numEffects = (uint32_t)reply.readInt32();
         }
         return NO_ERROR;
diff --git a/media/libmedia/JetPlayer.cpp b/media/libmedia/JetPlayer.cpp
index 8456db5..6cb5b82 100644
--- a/media/libmedia/JetPlayer.cpp
+++ b/media/libmedia/JetPlayer.cpp
@@ -246,14 +246,12 @@
     }//while (1)
 
 threadExit:
-    if (mAudioTrack) {
+    if (mAudioTrack != NULL) {
         mAudioTrack->stop();
         mAudioTrack->flush();
     }
-    if (mAudioBuffer) {
-        delete [] mAudioBuffer;
-        mAudioBuffer = NULL;
-    }
+    delete [] mAudioBuffer;
+    mAudioBuffer = NULL;
     mMutex.lock();
     mTid = -1;
     mCondition.signal();
diff --git a/media/libmedia/ToneGenerator.cpp b/media/libmedia/ToneGenerator.cpp
index dfa41c4..6cb10aa 100644
--- a/media/libmedia/ToneGenerator.cpp
+++ b/media/libmedia/ToneGenerator.cpp
@@ -1045,7 +1045,7 @@
 initAudioTrack_exit:
 
     // Cleanup
-    if (mpAudioTrack) {
+    if (mpAudioTrack != NULL) {
         ALOGV("Delete Track I: %p", mpAudioTrack);
         delete mpAudioTrack;
         mpAudioTrack = NULL;
diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp
index af464b2..f8b430e 100644
--- a/services/audioflinger/AudioPolicyService.cpp
+++ b/services/audioflinger/AudioPolicyService.cpp
@@ -588,10 +588,10 @@
         }
 
         dumpInternals(fd);
-        if (mAudioCommandThread != NULL) {
+        if (mAudioCommandThread != 0) {
             mAudioCommandThread->dump(fd);
         }
-        if (mTonePlaybackThread != NULL) {
+        if (mTonePlaybackThread != 0) {
             mTonePlaybackThread->dump(fd);
         }