Camera: Don't overwrite the error status

Bug: 10749544
Change-Id: I6096effde03e18ee1b8c63cf3b36dce0344054c5
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index 060e2a2..e808bf3 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -95,7 +95,7 @@
     if (res != OK) {
         ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
                 __FUNCTION__, TClientBase::mCameraId, strerror(-res), res);
-        return NO_INIT;
+        return res;
     }
 
     res = mDevice->setNotifyCallback(this);