diff --git a/drm/crypto/1.0/ICryptoPlugin.hal b/drm/crypto/1.0/ICryptoPlugin.hal
index e86c9f2..e892e3c 100644
--- a/drm/crypto/1.0/ICryptoPlugin.hal
+++ b/drm/crypto/1.0/ICryptoPlugin.hal
@@ -74,8 +74,8 @@
      * call to operate on a range of subsamples in a single call
      * @param source the input buffer for the decryption
      * @param destination the output buffer for the decryption
-     * @return status the status of the call. The status must be one of
-     * the following: ERROR_DRM_NO_LICENSE if no license keys have been
+     * @return status the status of the call. The status must be OK or one of
+     * the following errors: ERROR_DRM_NO_LICENSE if no license keys have been
      * loaded, ERROR_DRM_LICENSE_EXPIRED if the license keys have expired,
      * ERROR_DRM_RESOURCE_BUSY if the resources required to perform the
      * decryption are not available, ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION
@@ -83,12 +83,9 @@
      * ERROR_DRM_SESSION_NOT_OPENED if the decrypt session is not opened, or
      * ERROR_DRM_CANNOT_HANDLE in other failure cases.
      * @return bytesWritten the number of bytes output from the decryption
-     * @return detailedError if the error is a vendor-specific error, the
-     * vendor's crypto HAL may provide a detailed error string to help
-     * describe the error.
      */
     decrypt(bool secure, uint8_t[16] keyId, uint8_t[16] iv, Mode mode,
         Pattern pattern, vec<SubSample> subSamples,
             memory source, DestinationBuffer destination)
-        generates(Status status, uint32_t bytesWritten, string detailedError);
+        generates(Status status, uint32_t bytesWritten);
 };