From d4971502588558cd3ee8e1243962e5782ea42d3f Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sun, 26 Apr 2015 23:49:53 +0200 Subject: derp MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/bus.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/bus.c b/src/bus.c index cf5cec0..220b486 100644 --- a/src/bus.c +++ b/src/bus.c @@ -685,13 +685,14 @@ bus_poll_stop(const bus_t *bus) const char * bus_poll(bus_t *bus) { - if (bus->first_poll) { - bus->first_poll = 0; + if (!bus->first_poll) { t(release_semaphore(bus, W, SEM_UNDO)); t(acquire_semaphore(bus, S, SEM_UNDO)); t(zero_semaphore(bus, S)); t(release_semaphore(bus, S, SEM_UNDO)); t(acquire_semaphore(bus, W, SEM_UNDO)); + } else { + bus->first_poll = 0; } t(release_semaphore(bus, Q, 0)); t(zero_semaphore(bus, Q)); -- cgit v1.2.3-70-g09d2