workqueue: deprecate flush[_delayed]_work_sync()

flush[_delayed]_work_sync() are now spurious.  Mark them deprecated
and convert all users to flush[_delayed]_work().

If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant and the regular flushes guarantee that the work item is
not pending or running on any CPU on return, so there's no reason to
use the sync flushes at all and they're going away.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Mattia Dongili <malattia@linux.it>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Avi Kivity <avi@redhat.com> 

60 files changed, 81 insertions, 81 deletions

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2c2d2e5c1597..007db8986e84 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -670,7 +670,7 @@ static void xlvbd_release_gendisk(struct blkfront_info *info)
         spin_unlock_irqrestore(&info->io_lock, flags);
 
         /* Flush gnttab callback work. Must be done with no locks held. */
-        flush_work_sync(&info->work);
+        flush_work(&info->work);
 
         del_gendisk(info->gd);
 
@@ -719,7 +719,7 @@ static void blkif_free(struct blkfront_info *info, int suspend)
         spin_unlock_irq(&info->io_lock);
 
         /* Flush gnttab callback work. Must be done with no locks held. */
-        flush_work_sync(&info->work);
+        flush_work(&info->work);
 
         /* Free resources associated with old device channel. */
         if (info->ring_ref != GRANT_INVALID_REF) {
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 3ceaf006e7f0..75d485afe56c 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -840,7 +840,7 @@ probe_fail_no_mem:
 
 static int __devexit remove_gdrom(struct platform_device *devptr)
 {
-        flush_work_sync(&work);
+        flush_work(&work);
         blk_cleanup_queue(gd.gdrom_rq);
         free_irq(HW_EVENT_GDROM_CMD, &gd);
         free_irq(HW_EVENT_GDROM_DMA, &gd);
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index f87780502b41..320debbe32fa 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -1433,7 +1433,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
         sonypi_disable();
 
         synchronize_irq(sonypi_device.irq);
-        flush_work_sync(&sonypi_device.input_work);
+        flush_work(&sonypi_device.input_work);
 
         if (useinput) {
                 input_unregister_device(sonypi_device.input_key_dev);
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 817f0ee202b6..3af9f4d1a23f 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1172,7 +1172,7 @@ int tpm_release(struct inode *inode, struct file *file)
         struct tpm_chip *chip = file->private_data;
 
         del_singleshot_timer_sync(&chip->user_read_timer);
-        flush_work_sync(&chip->work);
+        flush_work(&chip->work);
         file->private_data = NULL;
         atomic_set(&chip->data_pending, 0);
         kfree(chip->data_buffer);
@@ -1225,7 +1225,7 @@ ssize_t tpm_read(struct file *file, char __user *buf,
         int rc;
 
         del_singleshot_timer_sync(&chip->user_read_timer);
-        flush_work_sync(&chip->work);
+        flush_work(&chip->work);
         ret_size = atomic_read(&chip->data_pending);
         atomic_set(&chip->data_pending, 0);
         if (ret_size > 0) {     /* relay data */
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index d2d88f22a037..a40808e51338 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -908,7 +908,7 @@ static int g2d_suspend(struct device *dev)
                 /* FIXME: good range? */
                 usleep_range(500, 1000);
 
-        flush_work_sync(&g2d->runqueue_work);
+        flush_work(&g2d->runqueue_work);
 
         return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.c b/drivers/gpu/drm/nouveau/nouveau_gpio.c
index 82c19e82ff02..0fe4e17c461d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gpio.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gpio.c
@@ -302,7 +302,7 @@ nouveau_gpio_isr_del(struct drm_device *dev, int idx, u8 tag, u8 line,
                 spin_unlock_irqrestore(&pgpio->lock, flags);
 
                 list_for_each_entry_safe(isr, tmp, &tofree, head) {
-                        flush_work_sync(&isr->work);
+                        flush_work(&isr->work);
                         kfree(isr);
                 }
         }
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index afaa1727abd2..50b596ec7b7e 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -277,7 +277,7 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
                 if (rdev->msi_enabled)
                         pci_disable_msi(rdev->pdev);
         }
-        flush_work_sync(&rdev->hotplug_work);
+        flush_work(&rdev->hotplug_work);
 }
 
 /**
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 3c447bf317cb..a32f2e96dd02 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -594,7 +594,7 @@ int vmw_fb_off(struct vmw_private *vmw_priv)
         par->dirty.active = false;
         spin_unlock_irqrestore(&par->dirty.lock, flags);
 
-        flush_delayed_work_sync(&info->deferred_work);
+        flush_delayed_work(&info->deferred_work);
 
         par->bo_ptr = NULL;
         ttm_bo_kunmap(&par->map);
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
index 27c8ebdfad01..3e90dee30ff6 100644
--- a/drivers/hid/hid-picolcd.c
+++ b/drivers/hid/hid-picolcd.c
@@ -2737,7 +2737,7 @@ static void __exit picolcd_exit(void)
 {
         hid_unregister_driver(&picolcd_driver);
 #ifdef CONFIG_HID_PICOLCD_FB
-        flush_work_sync(&picolcd_fb_cleanup);
+        flush_work(&picolcd_fb_cleanup);
         WARN_ON(fb_pending);
 #endif
 }
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index e83410721e38..52abb98a8ae5 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -221,7 +221,7 @@ static void wm831x_ts_input_close(struct input_dev *idev)
         synchronize_irq(wm831x_ts->pd_irq);
 
         /* Make sure the IRQ completion work is quiesced */
-        flush_work_sync(&wm831x_ts->pd_data_work);
+        flush_work(&wm831x_ts->pd_data_work);
 
         /* If we ended up with the pen down then make sure we revert back
          * to pen detection state for the next time we start up.
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index ef34fd40867c..4b85f7279f18 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -116,7 +116,7 @@ mISDN_freedchannel(struct dchannel *ch)
         }
         skb_queue_purge(&ch->squeue);
         skb_queue_purge(&ch->rqueue);
-        flush_work_sync(&ch->workq);
+        flush_work(&ch->workq);
         return 0;
 }
 EXPORT_SYMBOL(mISDN_freedchannel);
@@ -157,7 +157,7 @@ mISDN_freebchannel(struct bchannel *ch)
         mISDN_clear_bchannel(ch);
         skb_queue_purge(&ch->rqueue);
         ch->rcount = 0;
-        flush_work_sync(&ch->workq);
+        flush_work(&ch->workq);
         return 0;
 }
 EXPORT_SYMBOL(mISDN_freebchannel);
diff --git a/drivers/leds/leds-lm3533.c b/drivers/leds/leds-lm3533.c
index f56b6e7ffdac..f6837b99908c 100644
--- a/drivers/leds/leds-lm3533.c
+++ b/drivers/leds/leds-lm3533.c
@@ -737,7 +737,7 @@ err_sysfs_remove:
         sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
 err_unregister:
         led_classdev_unregister(&led->cdev);
-        flush_work_sync(&led->work);
+        flush_work(&led->work);
 
         return ret;
 }
@@ -751,7 +751,7 @@ static int __devexit lm3533_led_remove(struct platform_device *pdev)
         lm3533_ctrlbank_disable(&led->cb);
         sysfs_remove_group(&led->cdev.dev->kobj, &lm3533_led_attribute_group);
         led_classdev_unregister(&led->cdev);
-        flush_work_sync(&led->work);
+        flush_work(&led->work);
 
         return 0;
 }
@@ -765,7 +765,7 @@ static void lm3533_led_shutdown(struct platform_device *pdev)
 
         lm3533_ctrlbank_disable(&led->cb);
         lm3533_led_set(&led->cdev, LED_OFF);            /* disable blink */
-        flush_work_sync(&led->work);
+        flush_work(&led->work);
 }
 
 static struct platform_driver lm3533_led_driver = {
diff --git a/drivers/leds/leds-lp8788.c b/drivers/leds/leds-lp8788.c
index 53bd136f1ef0..cb76bc46a021 100644
--- a/drivers/leds/leds-lp8788.c
+++ b/drivers/leds/leds-lp8788.c
@@ -172,7 +172,7 @@ static int __devexit lp8788_led_remove(struct platform_device *pdev)
         struct lp8788_led *led = platform_get_drvdata(pdev);
 
         led_classdev_unregister(&led->led_dev);
-        flush_work_sync(&led->work);
+        flush_work(&led->work);
 
         return 0;
 }
diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index 918d4baff1c7..4c62113f7a77 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -275,7 +275,7 @@ static int wm8350_led_remove(struct platform_device *pdev)
         struct wm8350_led *led = platform_get_drvdata(pdev);
 
         led_classdev_unregister(&led->cdev);
-        flush_work_sync(&led->work);
+        flush_work(&led->work);
         wm8350_led_disable(led);
         regulator_put(led->dcdc);
         regulator_put(led->isink);
diff --git a/drivers/macintosh/ams/ams-core.c b/drivers/macintosh/ams/ams-core.c
index 5c6a2d876562..36a4fdddd64a 100644
--- a/drivers/macintosh/ams/ams-core.c
+++ b/drivers/macintosh/ams/ams-core.c
@@ -226,7 +226,7 @@ void ams_sensor_detach(void)
          * We do this after ams_info.exit(), because an interrupt might
          * have arrived before disabling them.
          */
-        flush_work_sync(&ams_info.worker);
+        flush_work(&ams_info.worker);
 
         /* Remove device */
         of_device_unregister(ams_info.of_dev);
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index d8abb90a6c2f..bb18eafcc85a 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -944,7 +944,7 @@ static void flush_multipath_work(struct multipath *m)
         flush_workqueue(kmpath_handlerd);
         multipath_wait_for_pg_init_completion(m);
         flush_workqueue(kmultipathd);
-        flush_work_sync(&m->trigger_event);
+        flush_work(&m->trigger_event);
 }
 
 static void multipath_dtr(struct dm_target *ti)
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index bc5ddba8045b..fd61f98ee1f6 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1146,7 +1146,7 @@ static void mirror_dtr(struct dm_target *ti)
 
         del_timer_sync(&ms->timer);
         flush_workqueue(ms->kmirrord_wq);
-        flush_work_sync(&ms->trigger_event);
+        flush_work(&ms->trigger_event);
         dm_kcopyd_client_destroy(ms->kcopyd_client);
         destroy_workqueue(ms->kmirrord_wq);
         free_context(ms, ti, ms->nr_mirrors);
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index a087bf2a8d66..e2f876539743 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -199,7 +199,7 @@ static void stripe_dtr(struct dm_target *ti)
         for (i = 0; i < sc->stripes; i++)
                 dm_put_device(ti, sc->stripe[i].dev);
 
-        flush_work_sync(&sc->trigger_event);
+        flush_work(&sc->trigger_event);
         kfree(sc);
 }
 
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 8766ce8c354d..c2117688aa23 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -1329,8 +1329,8 @@ static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned long num)
                 return -EBUSY;
 
         dvb_net_stop(net);
-        flush_work_sync(&priv->set_multicast_list_wq);
-        flush_work_sync(&priv->restart_net_feed_wq);
+        flush_work(&priv->set_multicast_list_wq);
+        flush_work(&priv->restart_net_feed_wq);
         printk("dvb_net: removed network interface %s\n", net->name);
         unregister_netdev(net);
         dvbnet->state[num]=0;
diff --git a/drivers/media/dvb/mantis/mantis_evm.c b/drivers/media/dvb/mantis/mantis_evm.c
index 71ce52875c38..909ff54868a3 100644
--- a/drivers/media/dvb/mantis/mantis_evm.c
+++ b/drivers/media/dvb/mantis/mantis_evm.c
@@ -111,7 +111,7 @@ void mantis_evmgr_exit(struct mantis_ca *ca)
         struct mantis_pci *mantis = ca->ca_priv;
 
         dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
-        flush_work_sync(&ca->hif_evm_work);
+        flush_work(&ca->hif_evm_work);
         mantis_hif_exit(ca);
         mantis_pcmcia_exit(ca);
 }
diff --git a/drivers/media/dvb/mantis/mantis_uart.c b/drivers/media/dvb/mantis/mantis_uart.c
index 18340dafa426..85e977861b4a 100644
--- a/drivers/media/dvb/mantis/mantis_uart.c
+++ b/drivers/media/dvb/mantis/mantis_uart.c
@@ -183,6 +183,6 @@ void mantis_uart_exit(struct mantis_pci *mantis)
 {
         /* disable interrupt */
         mmwrite(mmread(MANTIS_UART_CTL) & 0xffef, MANTIS_UART_CTL);
-        flush_work_sync(&mantis->uart_work);
+        flush_work(&mantis->uart_work);
 }
 EXPORT_SYMBOL_GPL(mantis_uart_exit);
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index b58ff87db771..2ce7179a3864 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -196,7 +196,7 @@ static void request_modules(struct bttv *dev)
 
 static void flush_request_modules(struct bttv *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 7e5ffd6f5178..75c890907920 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -272,7 +272,7 @@ static void request_modules(struct cx18 *dev)
 
 static void flush_request_modules(struct cx18 *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 02d4d36735d3..b84ebc54d91b 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -1002,7 +1002,7 @@ static void request_modules(struct cx231xx *dev)
 
 static void flush_request_modules(struct cx231xx *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/cx23885/cx23885-input.c b/drivers/media/video/cx23885/cx23885-input.c
index ce765e3f77bd..bcbf7faf1bab 100644
--- a/drivers/media/video/cx23885/cx23885-input.c
+++ b/drivers/media/video/cx23885/cx23885-input.c
@@ -231,9 +231,9 @@ static void cx23885_input_ir_stop(struct cx23885_dev *dev)
                 v4l2_subdev_call(dev->sd_ir, ir, rx_s_parameters, &params);
                 v4l2_subdev_call(dev->sd_ir, ir, rx_g_parameters, &params);
         }
-        flush_work_sync(&dev->cx25840_work);
-        flush_work_sync(&dev->ir_rx_work);
-        flush_work_sync(&dev->ir_tx_work);
+        flush_work(&dev->cx25840_work);
+        flush_work(&dev->ir_rx_work);
+        flush_work(&dev->ir_tx_work);
 }
 
 static void cx23885_input_ir_close(struct rc_dev *rc)
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index cd5386ee210c..c04fb618e10b 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -70,7 +70,7 @@ static void request_modules(struct cx8802_dev *dev)
 
 static void flush_request_modules(struct cx8802_dev *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index ca62b9981380..f7831e73f077 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2900,7 +2900,7 @@ static void request_modules(struct em28xx *dev)
 
 static void flush_request_modules(struct em28xx *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/media/video/omap24xxcam.c b/drivers/media/video/omap24xxcam.c
index e5015b0d5508..8d7283bbd431 100644
--- a/drivers/media/video/omap24xxcam.c
+++ b/drivers/media/video/omap24xxcam.c
@@ -1198,7 +1198,7 @@ static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
 
         atomic_inc(&cam->reset_disable);
 
-        flush_work_sync(&cam->sensor_reset_work);
+        flush_work(&cam->sensor_reset_work);
 
         rval = videobuf_streamoff(q);
         if (!rval) {
@@ -1512,7 +1512,7 @@ static int omap24xxcam_release(struct file *file)
 
         atomic_inc(&cam->reset_disable);
 
-        flush_work_sync(&cam->sensor_reset_work);
+        flush_work(&cam->sensor_reset_work);
 
         /* stop streaming capture */
         videobuf_streamoff(&fh->vbq);
@@ -1536,7 +1536,7 @@ static int omap24xxcam_release(struct file *file)
          * not be scheduled anymore since streaming is already
          * disabled.)
          */
-        flush_work_sync(&cam->sensor_reset_work);
+        flush_work(&cam->sensor_reset_work);
 
         mutex_lock(&cam->mutex);
         if (atomic_dec_return(&cam->users) == 0) {
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 5fbb4e49495c..f2b37e05b964 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -170,7 +170,7 @@ static void request_submodules(struct saa7134_dev *dev)
 
 static void flush_request_submodules(struct saa7134_dev *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 
 #else
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index dde361a9194e..4df79c656909 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -556,7 +556,7 @@ static int empress_fini(struct saa7134_dev *dev)
 
         if (NULL == dev->empress_dev)
                 return 0;
-        flush_work_sync(&dev->empress_workqueue);
+        flush_work(&dev->empress_workqueue);
         video_unregister_device(dev->empress_dev);
         dev->empress_dev = NULL;
         return 0;
diff --git a/drivers/media/video/tm6000/tm6000-cards.c b/drivers/media/video/tm6000/tm6000-cards.c
index 034659b13174..307d8c5fb7cd 100644
--- a/drivers/media/video/tm6000/tm6000-cards.c
+++ b/drivers/media/video/tm6000/tm6000-cards.c
@@ -1074,7 +1074,7 @@ static void request_modules(struct tm6000_core *dev)
 
 static void flush_request_modules(struct tm6000_core *dev)
 {
-        flush_work_sync(&dev->request_module_wk);
+        flush_work(&dev->request_module_wk);
 }
 #else
 #define request_modules(dev)
diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c
index cb4910ac4d12..55d589981412 100644
--- a/drivers/mfd/menelaus.c
+++ b/drivers/mfd/menelaus.c
@@ -1259,7 +1259,7 @@ static int menelaus_probe(struct i2c_client *client,
         return 0;
 fail2:
         free_irq(client->irq, menelaus);
-        flush_work_sync(&menelaus->work);
+        flush_work(&menelaus->work);
 fail1:
         kfree(menelaus);
         return err;
@@ -1270,7 +1270,7 @@ static int __exit menelaus_remove(struct i2c_client *client)
         struct menelaus_chip    *menelaus = i2c_get_clientdata(client);
 
         free_irq(client->irq, menelaus);
-        flush_work_sync(&menelaus->work);
+        flush_work(&menelaus->work);
         kfree(menelaus);
         the_menelaus = NULL;
         return 0;
diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
index df03dd3bd0e2..6a7710603a90 100644
--- a/drivers/misc/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -487,7 +487,7 @@ static void __exit
 ioc4_exit(void)
 {
         /* Ensure ioc4_load_modules() has completed before exiting */
-        flush_work_sync(&ioc4_load_modules_work);
+        flush_work(&ioc4_load_modules_work);
         pci_unregister_driver(&ioc4_driver);
 }
 
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 551e316e4454..438737a1f59a 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -387,8 +387,8 @@ static void mtdoops_notify_remove(struct mtd_info *mtd)
                 printk(KERN_WARNING "mtdoops: could not unregister kmsg_dumper\n");
 
         cxt->mtd = NULL;
-        flush_work_sync(&cxt->work_erase);
-        flush_work_sync(&cxt->work_write);
+        flush_work(&cxt->work_erase);
+        flush_work(&cxt->work_write);
 }
 
 
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index 6505070abcfa..089ed134369b 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -1394,7 +1394,7 @@ static int offload_close(struct t3cdev *tdev)
         sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
 
         /* Flush work scheduled while releasing TIDs */
-        flush_work_sync(&td->tid_release_task);
+        flush_work(&td->tid_release_task);
 
         tdev->lldev = NULL;
         cxgb3_set_dummy_ops(tdev);
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index de2190443510..30ce10bc9149 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -3521,7 +3521,7 @@ static void vxge_device_unregister(struct __vxge_hw_device *hldev)
 
         strncpy(buf, dev->name, IFNAMSIZ);
 
-        flush_work_sync(&vdev->reset_task);
+        flush_work(&vdev->reset_task);
 
         /* in 2.6 will call stop() if device is up */
         unregister_netdev(dev);
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index ce4df61b4b56..c8251be104d6 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -3890,7 +3890,7 @@ static int cas_change_mtu(struct net_device *dev, int new_mtu)
         schedule_work(&cp->reset_task);
 #endif
 
-        flush_work_sync(&cp->reset_task);
+        flush_work(&cp->reset_task);
         return 0;
 }
 
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index c2a0fe393267..710f35395195 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -9932,7 +9932,7 @@ static int niu_suspend(struct pci_dev *pdev, pm_message_t state)
         if (!netif_running(dev))
                 return 0;
 
-        flush_work_sync(&np->reset_task);
+        flush_work(&np->reset_task);
         niu_netif_stop(np);
 
         del_timer_sync(&np->timer);
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index e1f410277242..c6ea995750db 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -860,10 +860,10 @@ void hostap_free_data(struct ap_data *ap)
                 return;
         }
 
-        flush_work_sync(&ap->add_sta_proc_queue);
+        flush_work(&ap->add_sta_proc_queue);
 
 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
-        flush_work_sync(&ap->wds_oper_queue);
+        flush_work(&ap->wds_oper_queue);
         if (ap->crypt)
                 ap->crypt->deinit(ap->crypt_priv);
         ap->crypt = ap->crypt_priv = NULL;
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index 50f87b60b0bd..8e7000fd4414 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -3311,13 +3311,13 @@ static void prism2_free_local_data(struct net_device *dev)
 
         unregister_netdev(local->dev);
 
-        flush_work_sync(&local->reset_queue);
-        flush_work_sync(&local->set_multicast_list_queue);
-        flush_work_sync(&local->set_tim_queue);
+        flush_work(&local->reset_queue);
+        flush_work(&local->set_multicast_list_queue);
+        flush_work(&local->set_tim_queue);
 #ifndef PRISM2_NO_STATION_MODES
-        flush_work_sync(&local->info_queue);
+        flush_work(&local->info_queue);
 #endif
-        flush_work_sync(&local->comms_qual_update);
+        flush_work(&local->comms_qual_update);
 
         lib80211_crypt_info_free(&local->crypt_info);
 
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
index 74c6b23aeabf..b19bfe400f8c 100644
--- a/drivers/power/collie_battery.c
+++ b/drivers/power/collie_battery.c
@@ -290,7 +290,7 @@ static struct gpio collie_batt_gpios[] = {
 static int collie_bat_suspend(struct ucb1x00_dev *dev, pm_message_t state)
 {
         /* flush all pending status updates */
-        flush_work_sync(&bat_work);
+        flush_work(&bat_work);
         return 0;
 }
 
diff --git a/drivers/power/tosa_battery.c b/drivers/power/tosa_battery.c
index 28bbe7e094e3..51199b5ce221 100644
--- a/drivers/power/tosa_battery.c
+++ b/drivers/power/tosa_battery.c
@@ -327,7 +327,7 @@ static struct gpio tosa_bat_gpios[] = {
 static int tosa_bat_suspend(struct platform_device *dev, pm_message_t state)
 {
         /* flush all pending status updates */
-        flush_work_sync(&bat_work);
+        flush_work(&bat_work);
         return 0;
 }
 
diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index d2d4c08c681c..1245fe1f48c3 100644
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -146,7 +146,7 @@ static irqreturn_t wm97xx_chrg_irq(int irq, void *data)
 #ifdef CONFIG_PM
 static int wm97xx_bat_suspend(struct device *dev)
 {
-        flush_work_sync(&bat_work);
+        flush_work(&bat_work);
         return 0;
 }
 
diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c
index 8c9a607ea77a..5757d0d6782f 100644
--- a/drivers/power/z2_battery.c
+++ b/drivers/power/z2_battery.c
@@ -276,7 +276,7 @@ static int z2_batt_suspend(struct device *dev)
         struct i2c_client *client = to_i2c_client(dev);
         struct z2_charger *charger = i2c_get_clientdata(client);
 
-        flush_work_sync(&charger->bat_work);
+        flush_work(&charger->bat_work);
         return 0;
 }
 
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f092588a078c..1d2b70017a8d 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3335,7 +3335,7 @@ void regulator_unregister(struct regulator_dev *rdev)
                 regulator_put(rdev->supply);
         mutex_lock(&regulator_list_mutex);
         debugfs_remove_recursive(rdev->debugfs);
-        flush_work_sync(&rdev->disable_work.work);
+        flush_work(&rdev->disable_work.work);
         WARN_ON(rdev->open_count);
         unset_regulator_supplies(rdev);
         list_del(&rdev->list);
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index def24a1079ad..33c52bc2c7b4 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -999,7 +999,7 @@ static void arcmsr_remove(struct pci_dev *pdev)
         int poll_count = 0;
         arcmsr_free_sysfs_attr(acb);
         scsi_remove_host(host);
-        flush_work_sync(&acb->arcmsr_do_message_isr_bh);
+        flush_work(&acb->arcmsr_do_message_isr_bh);
         del_timer_sync(&acb->eternal_timer);
         arcmsr_disable_outbound_ints(acb);
         arcmsr_stop_adapter_bgrb(acb);
@@ -1045,7 +1045,7 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
                 (struct AdapterControlBlock *)host->hostdata;
         del_timer_sync(&acb->eternal_timer);
         arcmsr_disable_outbound_ints(acb);
-        flush_work_sync(&acb->arcmsr_do_message_isr_bh);
+        flush_work(&acb->arcmsr_do_message_isr_bh);
         arcmsr_stop_adapter_bgrb(acb);
         arcmsr_flush_adapter_cache(acb);
 }
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 467dc38246f9..2ffeb9afd1b7 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9020,7 +9020,7 @@ static void __ipr_remove(struct pci_dev *pdev)
 
         spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
         wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
-        flush_work_sync(&ioa_cfg->work_q);
+        flush_work(&ioa_cfg->work_q);
         spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
 
         spin_lock(&ipr_driver_lock);
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index ea8a0b47d66d..af763eab2039 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -5459,7 +5459,7 @@ static void __devexit pmcraid_remove(struct pci_dev *pdev)
         pmcraid_shutdown(pdev);
 
         pmcraid_disable_interrupts(pinstance, ~0);
-        flush_work_sync(&pinstance->worker_q);
+        flush_work(&pinstance->worker_q);
 
         pmcraid_kill_tasklets(pinstance);
         pmcraid_unregister_interrupt_handler(pinstance);
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 5b30132960c7..bddc97c5c8e9 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -969,7 +969,7 @@ void qlt_stop_phase1(struct qla_tgt *tgt)
         spin_unlock_irqrestore(&ha->hardware_lock, flags);
         mutex_unlock(&ha->tgt.tgt_mutex);
 
-        flush_delayed_work_sync(&tgt->sess_del_work);
+        flush_delayed_work(&tgt->sess_del_work);
 
         ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
             "Waiting for sess works (tgt %p)", tgt);
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 6f5bc49c441f..1f8e8b37ed23 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -765,7 +765,7 @@ static void hvsi_flush_output(struct hvsi_struct *hp)
 
         /* 'writer' could still be pending if it didn't see n_outbuf = 0 yet */
         cancel_delayed_work_sync(&hp->writer);
-        flush_work_sync(&hp->handshaker);
+        flush_work(&hp->handshaker);
 
         /*
          * it's also possible that our timeout expired and hvsi_write_worker
diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c
index 0aeb5a38d296..b4ba0670dc54 100644
--- a/drivers/tty/ipwireless/hardware.c
+++ b/drivers/tty/ipwireless/hardware.c
@@ -1729,7 +1729,7 @@ void ipwireless_hardware_free(struct ipw_hardware *hw)
 
         ipwireless_stop_interrupts(hw);
 
-        flush_work_sync(&hw->work_rx);
+        flush_work(&hw->work_rx);
 
         for (i = 0; i < NL_NUM_OF_ADDRESSES; i++)
                 if (hw->packet_assembler[i] != NULL)
diff --git a/drivers/tty/ipwireless/network.c b/drivers/tty/ipwireless/network.c
index 57c8b481113f..90ea902ff191 100644
--- a/drivers/tty/ipwireless/network.c
+++ b/drivers/tty/ipwireless/network.c
@@ -430,8 +430,8 @@ void ipwireless_network_free(struct ipw_network *network)
         network->shutting_down = 1;
 
         ipwireless_ppp_close(network);
-        flush_work_sync(&network->work_go_online);
-        flush_work_sync(&network->work_go_offline);
+        flush_work(&network->work_go_online);
+        flush_work(&network->work_go_offline);
 
         ipwireless_stop_interrupts(network->hardware);
         ipwireless_associate_network(network->hardware, NULL);
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 2b42a01a81c6..ebabf929f460 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -122,7 +122,7 @@ static void kgdboc_unregister_kbd(void)
                         i--;
                 }
         }
-        flush_work_sync(&kgdboc_restore_input_work);
+        flush_work(&kgdboc_restore_input_work);
 }
 #else /* ! CONFIG_KDB_KEYBOARD */
 #define kgdboc_register_kbd(x) 0
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index d3cda0cb2df0..0952d71bdf28 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1205,7 +1205,7 @@ static int serial_omap_suspend(struct device *dev)
 
         if (up) {
                 uart_suspend_port(&serial_omap_reg, &up->port);
-                flush_work_sync(&up->qos_work);
+                flush_work(&up->qos_work);
         }
 
         return 0;
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 6f99c9959f0c..ac5be812dbe3 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -523,9 +523,9 @@ static int tty_ldisc_halt(struct tty_struct *tty)
  */
 static void tty_ldisc_flush_works(struct tty_struct *tty)
 {
-        flush_work_sync(&tty->hangup_work);
-        flush_work_sync(&tty->SAK_work);
-        flush_work_sync(&tty->buf.work);
+        flush_work(&tty->hangup_work);
+        flush_work(&tty->SAK_work);
+        flush_work(&tty->buf.work);
 }
 
 /**
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
index 975e9c6691d6..807627b36cc8 100644
--- a/drivers/usb/atm/speedtch.c
+++ b/drivers/usb/atm/speedtch.c
@@ -718,7 +718,7 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de
         del_timer_sync(&instance->resubmit_timer);
         usb_free_urb(int_urb);
 
-        flush_work_sync(&instance->status_check_work);
+        flush_work(&instance->status_check_work);
 }
 
 static int speedtch_pre_reset(struct usb_interface *intf)
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index d7e422dc0ef7..9d1a044504e8 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -2234,7 +2234,7 @@ static void uea_stop(struct uea_softc *sc)
         usb_free_urb(sc->urb_int);
 
         /* flush the work item, when no one can schedule it */
-        flush_work_sync(&sc->task);
+        flush_work(&sc->task);
 
         release_firmware(sc->dsp_firm);
         uea_leaves(INS_TO_USBDEV(sc));
diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
index 90e82e288eb9..f1e5fbf5c2c7 100644
--- a/drivers/usb/gadget/u_ether.c
+++ b/drivers/usb/gadget/u_ether.c
@@ -834,7 +834,7 @@ void gether_cleanup(void)
                 return;
 
         unregister_netdev(the_dev->net);
-        flush_work_sync(&the_dev->work);
+        flush_work(&the_dev->work);
         free_netdev(the_dev->net);
 
         the_dev = NULL;
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2b1e8d84c873..2364098ea83c 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -893,7 +893,7 @@ static void ohci_stop (struct usb_hcd *hcd)
         ohci_dump (ohci, 1);
 
         if (quirk_nec(ohci))
-                flush_work_sync(&ohci->nec_work);
+                flush_work(&ohci->nec_work);
 
         ohci_usb_reset (ohci);
         ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
diff --git a/drivers/usb/otg/isp1301_omap.c b/drivers/usb/otg/isp1301_omap.c
index 7a88667742b6..720df35561c9 100644
--- a/drivers/usb/otg/isp1301_omap.c
+++ b/drivers/usb/otg/isp1301_omap.c
@@ -1230,7 +1230,7 @@ static int __exit isp1301_remove(struct i2c_client *i2c)
         isp->timer.data = 0;
         set_bit(WORK_STOP, &isp->todo);
         del_timer_sync(&isp->timer);
-        flush_work_sync(&isp->work);
+        flush_work(&isp->work);
 
         put_device(&i2c->dev);
         the_transceiver = NULL;