am 6834f061: am 970d7dd9: am e2c32e9f: If nothing is to be copied, return right away.

* commit '6834f0617aea626dfc0f306c9fa3610f32cee1f7':
  If nothing is to be copied, return right away.

1 files changed, 4 insertions, 0 deletions

diff --git a/media/libstagefright/NuCachedSource2.cpp b/media/libstagefright/NuCachedSource2.cpp
index 7c65612b3387..3c99d1c715a0 100644
--- a/media/libstagefright/NuCachedSource2.cpp
+++ b/media/libstagefright/NuCachedSource2.cpp
@@ -135,6 +135,10 @@ size_t PageCache::releaseFromStart(size_t maxBytes) {
 void PageCache::copy(size_t from, void *data, size_t size) {
     LOGV("copy from %d size %d", from, size);
 
+    if (size == 0) {
+        return;
+    }
+
     CHECK_LE(from + size, mTotalSize);
 
     size_t offset = 0;