read_istream_filtered: propagate read error from upstream

diff --git a/streaming.c b/streaming.c
index f4126a7da5fb915b3d1df857b39ca9ab0ab6fb16..f4ab12ba420e99cd08abed1762e8ee7c040261b6 100644 (file)
--- a/streaming.c
+++ b/streaming.c
@@ -237,7 +237,7 @@ static read_method_decl(filtered)
                if (!fs->input_finished) {
                        fs->i_end = read_istream(fs->upstream, fs->ibuf, FILTER_BUFFER);
                        if (fs->i_end < 0)
-                               break;
+                               return -1;
                        if (fs->i_end)
                                continue;
                }