lib: Make static analyzer happier about istream-chain changes

diff --git a/src/lib/istream-chain.c b/src/lib/istream-chain.c
index 0c0d0eb0c0ac709eadf0342336b16f3f0b43bee4..27fd43778a9e7b659af1d2e7edcd69f8226618fa 100644 (file)
--- a/src/lib/istream-chain.c
+++ b/src/lib/istream-chain.c
@@ -201,6 +201,7 @@ static ssize_t i_stream_chain_read(struct istream_private *stream)
 
        if (!i_stream_chain_skip(cstream))
                return 0;
+       i_assert(link != NULL);
 
        i_assert(stream->pos >= stream->skip + cstream->prev_stream_left);
        cur_data_pos = stream->pos - (stream->skip + cstream->prev_stream_left);