3.2.53-rt76-rc1 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sebastian Andrzej Siewior <bige...@linutronix.de>

The wait-simple queue is lighter weight and more efficient than the full
wait queue, and may be used in atomic context on PREEMPT_RT.

Fix up some places that needed to call the swait_*() functions instead
of the wait_*() functions.

Cc: stable...@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
---
 drivers/net/wireless/orinoco/orinoco_usb.c | 2 +-
 drivers/usb/gadget/f_fs.c                  | 2 +-
 drivers/usb/gadget/inode.c                 | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/orinoco/orinoco_usb.c 
b/drivers/net/wireless/orinoco/orinoco_usb.c
index 0793e42..d45833f 100644
--- a/drivers/net/wireless/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/orinoco/orinoco_usb.c
@@ -714,7 +714,7 @@ static void ezusb_req_ctx_wait(struct ezusb_priv *upriv,
                        while (!ctx->done.done && msecs--)
                                udelay(1000);
                } else {
-                       wait_event_interruptible(ctx->done.wait,
+                       swait_event_interruptible(ctx->done.wait,
                                                 ctx->done.done);
                }
                break;
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 0e641a1..c6154ca 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1270,7 +1270,7 @@ static void ffs_data_put(struct ffs_data *ffs)
                BUG_ON(mutex_is_locked(&ffs->mutex) ||
                       spin_is_locked(&ffs->ev.waitq.lock) ||
                       waitqueue_active(&ffs->ev.waitq) ||
-                      waitqueue_active(&ffs->ep0req_completion.wait));
+                      swaitqueue_active(&ffs->ep0req_completion.wait));
                kfree(ffs);
        }
 }
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 7138540..616d19e 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -339,7 +339,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len)
        spin_unlock_irq (&epdata->dev->lock);
 
        if (likely (value == 0)) {
-               value = wait_event_interruptible (done.wait, done.done);
+               value = swait_event_interruptible (done.wait, done.done);
                if (value != 0) {
                        spin_lock_irq (&epdata->dev->lock);
                        if (likely (epdata->ep != NULL)) {
@@ -348,7 +348,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len)
                                usb_ep_dequeue (epdata->ep, epdata->req);
                                spin_unlock_irq (&epdata->dev->lock);
 
-                               wait_event (done.wait, done.done);
+                               swait_event (done.wait, done.done);
                                if (epdata->status == -ECONNRESET)
                                        epdata->status = -EINTR;
                        } else {
-- 
1.8.4.3


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