From f6a8d4f481fb17c271d84415761fb0e08794d8a2 Mon Sep 17 00:00:00 2001
From: tobigun <hennymcc@yahoo.de>
Date: Sun, 19 Jul 2015 14:15:38 +0200
Subject: Fix crash if Exif-Tag buffer-length and component-count are both 0

Change-Id: Iad9b60d135b4f682c08c3bfc9698cdd10e1086ab
---
 WallpaperPicker/src/com/android/gallery3d/exif/ExifOutputStream.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/WallpaperPicker/src/com/android/gallery3d/exif/ExifOutputStream.java b/WallpaperPicker/src/com/android/gallery3d/exif/ExifOutputStream.java
index 7ca05f2e0..4c2009fac 100644
--- a/WallpaperPicker/src/com/android/gallery3d/exif/ExifOutputStream.java
+++ b/WallpaperPicker/src/com/android/gallery3d/exif/ExifOutputStream.java
@@ -482,7 +482,7 @@ class ExifOutputStream extends FilterOutputStream {
         switch (tag.getDataType()) {
             case ExifTag.TYPE_ASCII:
                 byte buf[] = tag.getStringByte();
-                if (buf.length == tag.getComponentCount()) {
+                if (buf.length == tag.getComponentCount() && buf.length > 0) {
                     buf[buf.length - 1] = 0;
                     dataOutputStream.write(buf);
                 } else {
-- 
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