Add mode when open(O_CREAT) is used.

When creating a new file using open(..., O_CREAT), it is an error
to fail to specify a creation mode. If a mode is not specified, a
random stack provided value is used as the "mode".

This will become a compile error in a future Android change.

Change-Id: I36a3d67d294a915c1f79632a1b0ba45edd1214b1
diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index bf7795c..d672dff 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -667,7 +667,7 @@
 // reads the object's data and writes it to the specified file path
 bool MtpDevice::readObject(MtpObjectHandle handle, const char* destPath, int group, int perm) {
     ALOGD("readObject: %s", destPath);
-    int fd = ::open(destPath, O_RDWR | O_CREAT | O_TRUNC);
+    int fd = ::open(destPath, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
     if (fd < 0) {
         ALOGE("open failed for %s", destPath);
         return false;