X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fstaging%2Fhv%2Fblkvsc_drv.c;fp=drivers%2Fstaging%2Fhv%2Fblkvsc_drv.c;h=3f81ca59106497841f7e45a5fb46b2d6d80b897b;hb=690c12d2c8ca50e55a3f507059c780ecdb8fd83f;hp=ff1d24720f11cf68f30e4c7aa8e5f2c108a1d304;hpb=f639011b4020a8230c8d09866f6eaadcb12e8dde;p=mv-sheeva.git

diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index ff1d24720f1..3f81ca59106 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -25,7 +25,7 @@
 #include <linux/major.h>
 #include <linux/delay.h>
 #include <linux/hdreg.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/slab.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -124,6 +124,7 @@ struct blkvsc_driver_context {
 };
 
 /* Static decl */
+static DEFINE_MUTEX(blkvsc_mutex);
 static int blkvsc_probe(struct device *dev);
 static int blkvsc_remove(struct device *device);
 static void blkvsc_shutdown(struct device *device);
@@ -176,8 +177,6 @@ static int blkvsc_drv_init(int (*drv_init)(struct hv_driver *drv))
 	struct driver_context *drv_ctx = &g_blkvsc_drv.drv_ctx;
 	int ret;
 
-	vmbus_get_interface(&storvsc_drv_obj->Base.VmbusChannelInterface);
-
 	storvsc_drv_obj->RingBufferSize = blkvsc_ringbuffer_size;
 
 	/* Callback to client driver to complete the initialization */
@@ -1309,7 +1308,7 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
 	DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users,
 		   blkdev->gd->disk_name);
 
-	lock_kernel();
+	mutex_lock(&blkvsc_mutex);
 	spin_lock(&blkdev->lock);
 
 	if (!blkdev->users && blkdev->device_type == DVD_TYPE) {
@@ -1321,7 +1320,7 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
 	blkdev->users++;
 
 	spin_unlock(&blkdev->lock);
-	unlock_kernel();
+	mutex_unlock(&blkvsc_mutex);
 	return 0;
 }
 
@@ -1332,7 +1331,7 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode)
 	DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users,
 		   blkdev->gd->disk_name);
 
-	lock_kernel();
+	mutex_lock(&blkvsc_mutex);
 	spin_lock(&blkdev->lock);
 	if (blkdev->users == 1) {
 		spin_unlock(&blkdev->lock);
@@ -1343,7 +1342,7 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode)
 	blkdev->users--;
 
 	spin_unlock(&blkdev->lock);
-	unlock_kernel();
+	mutex_unlock(&blkvsc_mutex);
 	return 0;
 }