commit b5ce361d19e69fe156f7188c9ee0f4734b259874
author Gloria Wang <gwang@google.com> Thu Feb 24 16:40:57 2011 -0800
committer Gloria Wang <gwang@google.com> Thu Mar 10 16:20:48 2011 -0800
tree 1536e63d3394cbbd5c2e8bc5cde6affb2b173850
parent 609ce04d29780c430ff7e17511fc073a664c02d5

Fix for bug 3477330
This patch fixs a crash bug caused by using a NULL DecryptHandle pointer.
Fix by using sp<DecryptHandle> instead.

Change-Id: Icbd59858385e8256125a615a3c82656b25319d44

include/drm/DrmManagerClient.h

diff --git a/include/drm/DrmManagerClient.h b/include/drm/DrmManagerClient.h
index 085ebf1..044ff0e 100644
--- a/include/drm/DrmManagerClient.h
+++ b/include/drm/DrmManagerClient.h
@@ -69,7 +69,7 @@
      * @return
      *     Handle for the decryption session
      */
-    DecryptHandle* openDecryptSession(int fd, off64_t offset, off64_t length);
+    sp<DecryptHandle> openDecryptSession(int fd, off64_t offset, off64_t length);
 
     /**
      * Open the decrypt session to decrypt the given protected content
@@ -78,7 +78,7 @@
      * @return
      *     Handle for the decryption session
      */
-    DecryptHandle* openDecryptSession(const char* uri);
+    sp<DecryptHandle> openDecryptSession(const char* uri);
 
     /**
      * Close the decrypt session for the given handle
@@ -87,7 +87,7 @@
      * @return status_t
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
      */
-    status_t closeDecryptSession(DecryptHandle* decryptHandle);
+    status_t closeDecryptSession(sp<DecryptHandle> &decryptHandle);
 
     /**
      * Consumes the rights for a content.
@@ -101,7 +101,7 @@
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure.
      *     In case license has been expired, DRM_ERROR_LICENSE_EXPIRED will be returned.
      */
-    status_t consumeRights(DecryptHandle* decryptHandle, int action, bool reserve);
+    status_t consumeRights(sp<DecryptHandle> &decryptHandle, int action, bool reserve);
 
     /**
      * Informs the DRM engine about the playback actions performed on the DRM files.
@@ -113,7 +113,8 @@
      * @return status_t
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
      */
-    status_t setPlaybackStatus(DecryptHandle* decryptHandle, int playbackStatus, int64_t position);
+    status_t setPlaybackStatus(
+            sp<DecryptHandle> &decryptHandle, int playbackStatus, int64_t position);
 
     /**
      * Initialize decryption for the given unit of the protected content
@@ -125,7 +126,7 @@
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
      */
     status_t initializeDecryptUnit(
-            DecryptHandle* decryptHandle, int decryptUnitId, const DrmBuffer* headerInfo);
+            sp<DecryptHandle> &decryptHandle, int decryptUnitId, const DrmBuffer* headerInfo);
 
     /**
      * Decrypt the protected content buffers for the given unit
@@ -144,7 +145,7 @@
      *     DRM_ERROR_DECRYPT for failure.
      */
     status_t decrypt(
-            DecryptHandle* decryptHandle, int decryptUnitId,
+            sp<DecryptHandle> &decryptHandle, int decryptUnitId,
             const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV = NULL);
 
     /**
@@ -155,7 +156,8 @@
      * @return status_t
      *     Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure
      */
-    status_t finalizeDecryptUnit(DecryptHandle* decryptHandle, int decryptUnitId);
+    status_t finalizeDecryptUnit(
+            sp<DecryptHandle> &decryptHandle, int decryptUnitId);
 
     /**
      * Reads the specified number of bytes from an open DRM file.
@@ -167,7 +169,8 @@
      *
      * @return Number of bytes read. Returns -1 for Failure.
      */
-    ssize_t pread(DecryptHandle* decryptHandle, void* buffer, ssize_t numBytes, off64_t offset);
+    ssize_t pread(sp<DecryptHandle> &decryptHandle,
+            void* buffer, ssize_t numBytes, off64_t offset);
 
     /**
      * Validates whether an action on the DRM content is allowed or not.