1 files changed, 2 insertions, 24 deletions

diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c
index 24a330d82395..88425e1af4d3 100644
--- a/drivers/spi/spi_bitbang.c
+++ b/drivers/spi/spi_bitbang.c
@@ -302,10 +302,6 @@ static void bitbang_work(struct work_struct *work)
                 setup_transfer = NULL;
 
                 list_for_each_entry (t, &m->transfers, transfer_list) {
-                        if (bitbang->shutdown) {
-                                status = -ESHUTDOWN;
-                                break;
-                        }
 
                         /* override or restore speed and wordsize */
                         if (t->speed_hz || t->bits_per_word) {
@@ -410,8 +406,6 @@ int spi_bitbang_transfer(struct spi_device *spi, struct spi_message *m)
         m->status = -EINPROGRESS;
 
         bitbang = spi_master_get_devdata(spi->master);
-        if (bitbang->shutdown)
-                return -ESHUTDOWN;
 
         spin_lock_irqsave(&bitbang->lock, flags);
         if (!spi->max_speed_hz)
@@ -507,28 +501,12 @@ EXPORT_SYMBOL_GPL(spi_bitbang_start);
  */
 int spi_bitbang_stop(struct spi_bitbang *bitbang)
 {
-        unsigned        limit = 500;
-
-        spin_lock_irq(&bitbang->lock);
-        bitbang->shutdown = 0;
-        while (!list_empty(&bitbang->queue) && limit--) {
-                spin_unlock_irq(&bitbang->lock);
+        spi_unregister_master(bitbang->master);
 
-                dev_dbg(bitbang->master->cdev.dev, "wait for queue\n");
-                msleep(10);
-
-                spin_lock_irq(&bitbang->lock);
-        }
-        spin_unlock_irq(&bitbang->lock);
-        if (!list_empty(&bitbang->queue)) {
-                dev_err(bitbang->master->cdev.dev, "queue didn't empty\n");
-                return -EBUSY;
-        }
+        WARN_ON(!list_empty(&bitbang->queue));
 
         destroy_workqueue(bitbang->workqueue);
 
-        spi_unregister_master(bitbang->master);
-
         return 0;
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_stop);