rpc: don't handle stale requests on already closed channel

1 files changed, 6 insertions, 0 deletions

diff --git a/src/nvim/msgpack_rpc/channel.c b/src/nvim/msgpack_rpc/channel.c
index 68ef4cd41e..a0b439ac45 100644
--- a/src/nvim/msgpack_rpc/channel.c
+++ b/src/nvim/msgpack_rpc/channel.c
@@ -377,6 +377,10 @@ static void request_event(void **argv)
   Channel *channel = e->channel;
   MsgpackRpcRequestHandler handler = e->handler;
   Error error = ERROR_INIT;
+  if (channel->rpc.closed) {
+    // channel was closed, abort any pending requests
+    goto free_ret;
+  }
   Object result = handler.fn(channel->id, e->args, &error);
   if (e->type == kMessageTypeRequest || ERROR_SET(&error)) {
     // Send the response.
@@ -391,6 +395,8 @@ static void request_event(void **argv)
   } else {
     api_free_object(result);
   }
+
+free_ret:
   api_free_array(e->args);
   channel_decref(channel);
   xfree(e);