Return APDU status code on tramsit channel command failure.

Change-Id: I2d506a6ddbb4e27a04f57941247924d36c9d279b
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 0772687..c50110a 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -2401,7 +2401,7 @@
      *            is sent to the SIM.
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
-     *            the end. If an error occurs, an empty string is returned.
+     *            the end.
      */
     public String iccTransmitApduLogicalChannel(int channel, int cla,
             int instruction, int p1, int p2, int p3, String data) {
@@ -2431,7 +2431,7 @@
      *            is sent to the SIM.
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
-     *            the end. If an error occurs, an empty string is returned.
+     *            the end.
      */
     public String iccTransmitApduBasicChannel(int cla,
             int instruction, int p1, int p2, int p3, String data) {
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 72b04cf..d256f9d 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -530,7 +530,7 @@
      *            is sent to the SIM.
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
-     *            the end. If an error occurs, an empty string is returned.
+     *            the end.
      */
     String iccTransmitApduLogicalChannel(int channel, int cla, int instruction,
             int p1, int p2, int p3, String data);
@@ -548,7 +548,7 @@
      *            is sent to the SIM.
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
-     *            the end. If an error occurs, an empty string is returned.
+     *            the end.
      */
     String iccTransmitApduBasicChannel(int cla, int instruction,
             int p1, int p2, int p3, String data);