spi/bfin_spi: convert queue run state to true/false

No point in creating our own version of true/false defines when there is
already a standard stdbool available to us.

Reported-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 045c82a36164eb9b6dc22978c316736735dc9c1a..40d9f64c7fa09371282bf879fe904fb3a2a66793 100644 (file)
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -41,8 +41,6 @@ MODULE_LICENSE("GPL");
 #define RUNNING_STATE  ((void *)1)
 #define DONE_STATE     ((void *)2)
 #define ERROR_STATE    ((void *)-1)
-#define QUEUE_RUNNING  0
-#define QUEUE_STOPPED  1
 
 struct driver_data {
        /* Driver model hookup */
@@ -66,7 +64,7 @@ struct driver_data {
        spinlock_t lock;
        struct list_head queue;
        int busy;
-       int run;
+       bool running;
 
        /* Message Transfer pump */
        struct tasklet_struct pump_transfers;
@@ -871,7 +869,7 @@ static void bfin_spi_pump_messages(struct work_struct *work)
 
        /* Lock queue and check for queue work */
        spin_lock_irqsave(&drv_data->lock, flags);
-       if (list_empty(&drv_data->queue) || drv_data->run == QUEUE_STOPPED) {
+       if (list_empty(&drv_data->queue) || !drv_data->running) {
                /* pumper kicked off but no work to do */
                drv_data->busy = 0;
                spin_unlock_irqrestore(&drv_data->lock, flags);
@@ -926,7 +924,7 @@ static int bfin_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 
        spin_lock_irqsave(&drv_data->lock, flags);
 
-       if (drv_data->run == QUEUE_STOPPED) {
+       if (!drv_data->running) {
                spin_unlock_irqrestore(&drv_data->lock, flags);
                return -ESHUTDOWN;
        }
@@ -938,7 +936,7 @@ static int bfin_spi_transfer(struct spi_device *spi, struct spi_message *msg)
        dev_dbg(&spi->dev, "adding an msg in transfer() \n");
        list_add_tail(&msg->queue, &drv_data->queue);
 
-       if (drv_data->run == QUEUE_RUNNING && !drv_data->busy)
+       if (drv_data->running && !drv_data->busy)
                queue_work(drv_data->workqueue, &drv_data->pump_messages);
 
        spin_unlock_irqrestore(&drv_data->lock, flags);
@@ -1177,7 +1175,7 @@ static inline int bfin_spi_init_queue(struct driver_data *drv_data)
        INIT_LIST_HEAD(&drv_data->queue);
        spin_lock_init(&drv_data->lock);
 
-       drv_data->run = QUEUE_STOPPED;
+       drv_data->running = false;
        drv_data->busy = 0;
 
        /* init transfer tasklet */
@@ -1200,12 +1198,12 @@ static inline int bfin_spi_start_queue(struct driver_data *drv_data)
 
        spin_lock_irqsave(&drv_data->lock, flags);
 
-       if (drv_data->run == QUEUE_RUNNING || drv_data->busy) {
+       if (drv_data->running || drv_data->busy) {
                spin_unlock_irqrestore(&drv_data->lock, flags);
                return -EBUSY;
        }
 
-       drv_data->run = QUEUE_RUNNING;
+       drv_data->running = true;
        drv_data->cur_msg = NULL;
        drv_data->cur_transfer = NULL;
        drv_data->cur_chip = NULL;
@@ -1230,7 +1228,7 @@ static inline int bfin_spi_stop_queue(struct driver_data *drv_data)
         * execution path (pump_messages) would be required to call wake_up or
         * friends on every SPI message. Do this instead
         */
-       drv_data->run = QUEUE_STOPPED;
+       drv_data->running = false;
        while (!list_empty(&drv_data->queue) && drv_data->busy && limit--) {
                spin_unlock_irqrestore(&drv_data->lock, flags);
                msleep(10);