BUG/MEDIUM: mux_pt: Only call the wake emthod if nobody subscribed to receive.

In mux_pt_io_cb(), instead of always calling the wake method, only do so
if nobody subscribed for receive. If we have a subscription, just wake the
associated tasklet up.

This should be backported to 1.9 and 2.0.

(cherry picked from commit 2ed389dc6e27257997f83e3f22cb6bf8898a2a5a)
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed