IB/mthca: Semaphore to mutex conversions

Convert semaphores to mutexes in mthca.  Leave firmware command
interface poll_sem and event_sem as semaphores.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 69128fe60c53..f9b9b93dc501 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -199,7 +199,7 @@ static int mthca_cmd_post(struct mthca_dev *dev,
 {
         int err = 0;
 
-        down(&dev->cmd.hcr_sem);
+        mutex_lock(&dev->cmd.hcr_mutex);
 
         if (event) {
                 unsigned long end = jiffies + GO_BIT_TIMEOUT;
@@ -237,7 +237,7 @@ static int mthca_cmd_post(struct mthca_dev *dev,
                                                op),                       dev->hcr + 6 * 4);
 
 out:
-        up(&dev->cmd.hcr_sem);
+        mutex_unlock(&dev->cmd.hcr_mutex);
         return err;
 }
 
@@ -435,7 +435,7 @@ static int mthca_cmd_imm(struct mthca_dev *dev,
 
 int mthca_cmd_init(struct mthca_dev *dev)
 {
-        sema_init(&dev->cmd.hcr_sem, 1);
+        mutex_init(&dev->cmd.hcr_mutex);
         sema_init(&dev->cmd.poll_sem, 1);
         dev->cmd.use_events = 0;