diff --git a/sensors/aidl/android/hardware/sensors/ISensors.aidl b/sensors/aidl/android/hardware/sensors/ISensors.aidl
index 2ac1884..2c68489 100644
--- a/sensors/aidl/android/hardware/sensors/ISensors.aidl
+++ b/sensors/aidl/android/hardware/sensors/ISensors.aidl
@@ -229,8 +229,7 @@
      *
      * @param mem shared memory info data structure.
      * @param out channelHandle The registered channel handle.
-     * @return The direct channel handle, which is positive if successfully registered, and -1
-     *         otherwise.
+     * @return The direct channel handle, which is positive if successfully registered.
      * @return Status::ok on success
      *         EX_ILLEGAL_ARGUMENT if the shared memory information is not consistent.
      *         EX_UNSUPPORTED_OPERATION if this functionality is unsupported.
@@ -245,7 +244,7 @@
      * @see OperationMode
      * @param mode The operation mode.
      * @return Status::ok on success
-     *         EX_UNSUPPORTED_OPERATION if requested mode is not supported.
+     *         EX_UNSUPPORTED_OPERATION or EX_ILLEGAL_ARGUMENT if requested mode is not supported.
      *         EX_SECURITY if the operation is not allowed.
      */
     void setOperationMode(in OperationMode mode);
diff --git a/sensors/aidl/default/multihal/HalProxyAidl.cpp b/sensors/aidl/default/multihal/HalProxyAidl.cpp
index 628914c..e6bcdad 100644
--- a/sensors/aidl/default/multihal/HalProxyAidl.cpp
+++ b/sensors/aidl/default/multihal/HalProxyAidl.cpp
@@ -141,10 +141,6 @@
         *_aidl_return = reportToken;
       });
 
-  if (!status.isOk()) {
-    *_aidl_return = -1;
-  }
-
   return status;
 }
 
@@ -216,10 +212,6 @@
   native_handle_delete(const_cast<native_handle_t *>(
       sharedMemInfo.memoryHandle.getNativeHandle()));
 
-  if (!status.isOk()) {
-    *_aidl_return = -1;
-  }
-
   return status;
 }
 
diff --git a/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp b/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp
index 83d0dc9..d536e29 100644
--- a/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp
+++ b/sensors/aidl/vts/VtsAidlHalSensorsTargetTest.cpp
@@ -599,10 +599,12 @@
         ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::DATA_INJECTION).isOk());
         ASSERT_TRUE(getSensors()->setOperationMode(ISensors::OperationMode::NORMAL).isOk());
     } else {
-        ASSERT_EQ(getSensors()
-                          ->setOperationMode(ISensors::OperationMode::DATA_INJECTION)
-                          .getExceptionCode(),
-                  EX_UNSUPPORTED_OPERATION);
+      int errorCode =
+          getSensors()
+              ->setOperationMode(ISensors::OperationMode::DATA_INJECTION)
+              .getExceptionCode();
+      ASSERT_TRUE((errorCode == EX_UNSUPPORTED_OPERATION) ||
+                  (errorCode == EX_ILLEGAL_ARGUMENT));
     }
 }
 
@@ -938,10 +940,10 @@
     if (isDirectReportRateSupported(sensor, rateLevel)) {
         ASSERT_TRUE(status.isOk());
         if (rateLevel != ISensors::RateLevel::STOP) {
-            ASSERT_GT(*reportToken, 0);
-        } else {
-            ASSERT_EQ(status.getExceptionCode(), EX_ILLEGAL_ARGUMENT);
+          ASSERT_GT(*reportToken, 0);
         }
+    } else {
+      ASSERT_EQ(status.getExceptionCode(), EX_ILLEGAL_ARGUMENT);
     }
 }
 
@@ -982,11 +984,15 @@
     ::ndk::ScopedAStatus status = registerDirectChannel(mem->getSharedMemInfo(), &channelHandle);
     if (supportsSharedMemType) {
         ASSERT_TRUE(status.isOk());
-        ASSERT_EQ(channelHandle, 0);
+        ASSERT_GT(channelHandle, 0);
+
+        // Verify that the memory has been zeroed
+        for (size_t i = 0; i < mem->getSize(); i++) {
+          ASSERT_EQ(buffer[i], 0x00);
+        }
     } else {
         int32_t error = supportsAnyDirectChannel ? EX_ILLEGAL_ARGUMENT : EX_UNSUPPORTED_OPERATION;
         ASSERT_EQ(status.getExceptionCode(), error);
-        ASSERT_EQ(channelHandle, -1);
     }
     *directChannelHandle = channelHandle;
 }
@@ -1038,7 +1044,7 @@
         // Verify that a sensor handle of -1 is only acceptable when using RateLevel::STOP
         ndk::ScopedAStatus status = configDirectReport(-1 /* sensorHandle */, directChannelHandle,
                                                        ISensors::RateLevel::NORMAL, &reportToken);
-        ASSERT_EQ(status.getServiceSpecificError(), android::BAD_VALUE);
+        ASSERT_EQ(status.getExceptionCode(), EX_ILLEGAL_ARGUMENT);
 
         status = configDirectReport(-1 /* sensorHandle */, directChannelHandle,
                                     ISensors::RateLevel::STOP, &reportToken);