[media] lirc_zilog: fix spinning rx thread

We were calling schedule_timeout with the rx thread's task state still
at TASK_RUNNING, which it shouldn't be. Make sure we call
set_current_state(TASK_INTERRUPTIBLE) *before* schedule_timeout, and
we're all good here. I believe this problem was mistakenly introduced in
commit 5bd6b0464b68d429bc8a3fe6595d19c39dfc4d95, and I'm not sure how I
missed it before, as I swear I tested the patchset that was included in,
but alas, stuff happens...

Acked-by: Andy Walls <awalls@md.metrocast.net>
CC: stable@kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/staging/lirc/lirc_zilog.c b/drivers/staging/lirc/lirc_zilog.c
index dd6a57c3c3a3..4e051f6b52db 100644
--- a/drivers/staging/lirc/lirc_zilog.c
+++ b/drivers/staging/lirc/lirc_zilog.c
@@ -475,14 +475,14 @@ static int lirc_thread(void *arg)
         dprintk("poll thread started\n");
 
         while (!kthread_should_stop()) {
+                set_current_state(TASK_INTERRUPTIBLE);
+
                 /* if device not opened, we can sleep half a second */
                 if (atomic_read(&ir->open_count) == 0) {
                         schedule_timeout(HZ/2);
                         continue;
                 }
 
-                set_current_state(TASK_INTERRUPTIBLE);
-
                 /*
                  * This is ~113*2 + 24 + jitter (2*repeat gap + code length).
                  * We use this interval as the chip resets every time you poll