[libsoup] connection: Fix logic error in previous commit

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 105f047bcedcb64f278f32e8e34b793dc50c0d62
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Fri Feb 22 14:10:12 2019 -0600

    connection: Fix logic error in previous commit
    
    When there is no error at all, that is unexpected and we should
    disconnect. I mishandled it in the previous commit and Dan merged !42
    before I fixed it.
    
    Related to: #134 and !42

 libsoup/soup-connection.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/libsoup/soup-connection.c b/libsoup/soup-connection.c
index 3e05a5ab..0db54d51 100644
--- a/libsoup/soup-connection.c
+++ b/libsoup/soup-connection.c
@@ -639,7 +639,6 @@ is_idle_connection_disconnected (SoupConnection *conn)
        GInputStream *istream;
        char buffer[1];
        GError *error = NULL;
-       gboolean ret = FALSE;
 
        if (!soup_socket_is_connected (priv->socket))
                return TRUE;
@@ -662,13 +661,14 @@ is_idle_connection_disconnected (SoupConnection *conn)
        g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM (istream),
                                                  &buffer, sizeof (buffer),
                                                  NULL, &error);
-       if (error != NULL) {
-               if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
-                       ret = TRUE;
-               g_error_free (error);
+       if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK)) {
+               g_clear_error (&error);
+               return TRUE;
        }
 
-       return ret;
+       g_error_free (error);
+
+       return FALSE;
 }
 
 SoupConnectionState