[PATCH] HID: picolcd_fb: Use flush_delayed_work instead of flush_delayed_work_sync

[Axel Lin <axel.lin@gmail.com>]

Seems this is a left over of commit 4382973
"workqueue: deprecate flush[_delayed]_work_sync()"

This fixes below build warning:

  CC [M]  drivers/hid/hid-picolcd_fb.o
drivers/hid/hid-picolcd_fb.c: In function 'picolcd_exit_framebuffer':
drivers/hid/hid-picolcd_fb.c:611:2: warning: 'flush_delayed_work_sync' is deprecated (declared at include/linux/workqueue.h:454) [-Wdeprecated-declarations]

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
---
 drivers/hid/hid-picolcd_fb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-picolcd_fb.c b/drivers/hid/hid-picolcd_fb.c
index 0008a51..eb00357 100644
--- a/drivers/hid/hid-picolcd_fb.c
+++ b/drivers/hid/hid-picolcd_fb.c
@@ -608,7 +608,7 @@ void picolcd_exit_framebuffer(struct picolcd_data *data)
 	/* make sure there is no running update - thus that fbdata->picolcd
 	 * once obtained under lock is guaranteed not to get free() under
 	 * the feet of the deferred work */
-	flush_delayed_work_sync(&info->deferred_work);
+	flush_delayed_work(&info->deferred_work);
 
 	data->fb_info = NULL;
 	unregister_framebuffer(info);
-- 
1.7.9.5