indexer: Fix crash if client disconnects while it's waiting for command reply

This happened for example if IMAP SEARCH triggered long fts indexing and the
IMAP client disconnected while waiting for the reply.

Broken by f62a25849358e40a08a2c47f5bcaa1613a31d076

diff --git a/src/indexer/indexer-client.c b/src/indexer/indexer-client.c
index c5aac8a3da40bfa14e08f709fd0de604d0e2ac58..ab4710778acbe3cf2ac882c736fdcde1be1bdc80 100644 (file)
--- a/src/indexer/indexer-client.c
+++ b/src/indexer/indexer-client.c
@@ -139,7 +139,7 @@ void indexer_client_status_callback(int percentage, void *context)
        struct indexer_client_request *ctx = context;
 
        /* we are in deinit already, or the client has disconnected */
-       if (ctx->client == NULL)
+       if (ctx->client->conn.output == NULL)
                return;
 
        T_BEGIN {