commit d8091b9331b17d4a6d5d3ec04e161b7956f67cb8
author Chia-I Wu <olv@google.com> Tue May 16 14:30:34 2017 -0700
committer Chia-I Wu <olv@google.com> Tue May 16 14:32:59 2017 -0700
tree 78d447ebf7daf16cb103d4cc6243ecfbf543b122
parent 47c1875e355ffb8088b842d3ddaf9a638746200f

libui: flush hwbinder commands in Allocator::allocate

Bug: 36279079
Test: monkey test on fugu
Change-Id: I81f72d63d3ede64f279b26208bb5df7646050e73

libs/ui/Gralloc2.cpp

diff --git a/libs/ui/Gralloc2.cpp b/libs/ui/Gralloc2.cpp
index f8d9401..87dbaf4 100644
--- a/libs/ui/Gralloc2.cpp
+++ b/libs/ui/Gralloc2.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "Gralloc2"
 
+#include <hwbinder/IPCThreadState.h>
 #include <ui/Gralloc2.h>
 
 #include <log/log.h>
@@ -241,6 +242,9 @@
                 *outStride = tmpStride;
             });
 
+    // make sure the kernel driver sees BC_FREE_BUFFER and closes the fds now
+    hardware::IPCThreadState::self()->flushCommands();
+
     return (ret.isOk()) ? error : kTransactionError;
 }