scsi: esas2r: Replace semaphore fm_api_semaphore with mutex

The semaphore 'fm_api_semaphore' is used as a simple mutex, so it should
be written as one. Semaphores are going away in the future.

Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h
index b6030e3..c5013de 100644 (file)
--- a/drivers/scsi/esas2r/esas2r.h
+++ b/drivers/scsi/esas2r/esas2r.h
@@ -945,7 +945,7 @@ struct esas2r_adapter {
        struct list_head vrq_mds_head;
        struct esas2r_mem_desc *vrq_mds;
        int num_vrqs;
-       struct semaphore fm_api_semaphore;
+       struct mutex fm_api_mutex;
        struct semaphore fs_api_semaphore;
        struct semaphore nvram_semaphore;
        struct atto_ioctl *local_atto_ioctl;

diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index 6432a50..ad85b33 100644 (file)
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -327,7 +327,7 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
        esas2r_debug("new adapter %p, name %s", a, a->name);
        spin_lock_init(&a->request_lock);
        spin_lock_init(&a->fw_event_lock);
-       sema_init(&a->fm_api_semaphore, 1);
+       mutex_init(&a->fm_api_mutex);
        sema_init(&a->fs_api_semaphore, 1);
        sema_init(&a->nvram_semaphore, 1);
 

diff --git a/drivers/scsi/esas2r/esas2r_ioctl.c b/drivers/scsi/esas2r/esas2r_ioctl.c
index 2d4b7f0..c6b041a 100644 (file)
--- a/drivers/scsi/esas2r/esas2r_ioctl.c
+++ b/drivers/scsi/esas2r/esas2r_ioctl.c
@@ -110,7 +110,7 @@ static void do_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi)
 {
        struct esas2r_request *rq;
 
-       if (down_interruptible(&a->fm_api_semaphore)) {
+       if (mutex_lock_interruptible(&a->fm_api_mutex)) {
                fi->status = FI_STAT_BUSY;
                return;
        }
@@ -173,7 +173,7 @@ all_done:
 free_req:
        esas2r_free_request(a, (struct esas2r_request *)rq);
 free_sem:
-       up(&a->fm_api_semaphore);
+       mutex_unlock(&a->fm_api_mutex);
        return;
 
 }