tiffenc: fix return value.

diff --git a/libavcodec/tiffenc.c b/libavcodec/tiffenc.c
index c061ac985f1e120c59d09a2c63b089e82c274e45..8cda2b2d36474fa6057a4a82654943c20f3a0644 100644 (file)
--- a/libavcodec/tiffenc.c
+++ b/libavcodec/tiffenc.c
@@ -463,7 +463,7 @@ fail:
     av_free(strip_sizes);
     av_free(strip_offsets);
     av_free(yuv_line);
-    return ret;
+    return ret < 0 ? ret : 0;
 }
 
 #define OFFSET(x) offsetof(TiffEncoderContext, x)