3 files changed, 17 insertions, 16 deletions

diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
index ca7960adf5a3..b038aa9f5a70 100644
--- a/samples/vfio-mdev/mbochs.c
+++ b/samples/vfio-mdev/mbochs.c
@@ -1448,13 +1448,13 @@ static int __init mbochs_dev_init(void)
 {
 	int ret = 0;
 
-	ret = alloc_chrdev_region(&mbochs_devt, 0, MINORMASK, MBOCHS_NAME);
+	ret = alloc_chrdev_region(&mbochs_devt, 0, MINORMASK + 1, MBOCHS_NAME);
 	if (ret < 0) {
 		pr_err("Error: failed to register mbochs_dev, err: %d\n", ret);
 		return ret;
 	}
 	cdev_init(&mbochs_cdev, &vd_fops);
-	cdev_add(&mbochs_cdev, mbochs_devt, MINORMASK);
+	cdev_add(&mbochs_cdev, mbochs_devt, MINORMASK + 1);
 	pr_info("%s: major %d\n", __func__, MAJOR(mbochs_devt));
 
 	mbochs_class = class_create(THIS_MODULE, MBOCHS_CLASS_NAME);
@@ -1483,7 +1483,7 @@ failed2:
 	class_destroy(mbochs_class);
 failed1:
 	cdev_del(&mbochs_cdev);
-	unregister_chrdev_region(mbochs_devt, MINORMASK);
+	unregister_chrdev_region(mbochs_devt, MINORMASK + 1);
 	return ret;
 }
 
@@ -1494,7 +1494,7 @@ static void __exit mbochs_dev_exit(void)
 
 	device_unregister(&mbochs_dev);
 	cdev_del(&mbochs_cdev);
-	unregister_chrdev_region(mbochs_devt, MINORMASK);
+	unregister_chrdev_region(mbochs_devt, MINORMASK + 1);
 	class_destroy(mbochs_class);
 	mbochs_class = NULL;
 }
diff --git a/samples/vfio-mdev/mdpy.c b/samples/vfio-mdev/mdpy.c
index 96e7969c473a..cc86bf6566e4 100644
--- a/samples/vfio-mdev/mdpy.c
+++ b/samples/vfio-mdev/mdpy.c
@@ -752,13 +752,13 @@ static int __init mdpy_dev_init(void)
 {
 	int ret = 0;
 
-	ret = alloc_chrdev_region(&mdpy_devt, 0, MINORMASK, MDPY_NAME);
+	ret = alloc_chrdev_region(&mdpy_devt, 0, MINORMASK + 1, MDPY_NAME);
 	if (ret < 0) {
 		pr_err("Error: failed to register mdpy_dev, err: %d\n", ret);
 		return ret;
 	}
 	cdev_init(&mdpy_cdev, &vd_fops);
-	cdev_add(&mdpy_cdev, mdpy_devt, MINORMASK);
+	cdev_add(&mdpy_cdev, mdpy_devt, MINORMASK + 1);
 	pr_info("%s: major %d\n", __func__, MAJOR(mdpy_devt));
 
 	mdpy_class = class_create(THIS_MODULE, MDPY_CLASS_NAME);
@@ -787,7 +787,7 @@ failed2:
 	class_destroy(mdpy_class);
 failed1:
 	cdev_del(&mdpy_cdev);
-	unregister_chrdev_region(mdpy_devt, MINORMASK);
+	unregister_chrdev_region(mdpy_devt, MINORMASK + 1);
 	return ret;
 }
 
@@ -798,7 +798,7 @@ static void __exit mdpy_dev_exit(void)
 
 	device_unregister(&mdpy_dev);
 	cdev_del(&mdpy_cdev);
-	unregister_chrdev_region(mdpy_devt, MINORMASK);
+	unregister_chrdev_region(mdpy_devt, MINORMASK + 1);
 	class_destroy(mdpy_class);
 	mdpy_class = NULL;
 }
diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c
index f6732aa16bb1..1c77c370c92f 100644
--- a/samples/vfio-mdev/mtty.c
+++ b/samples/vfio-mdev/mtty.c
@@ -156,15 +156,15 @@ static const struct file_operations vd_fops = {
 
 /* function prototypes */
 
-static int mtty_trigger_interrupt(uuid_le uuid);
+static int mtty_trigger_interrupt(const guid_t *uuid);
 
 /* Helper functions */
-static struct mdev_state *find_mdev_state_by_uuid(uuid_le uuid)
+static struct mdev_state *find_mdev_state_by_uuid(const guid_t *uuid)
 {
 	struct mdev_state *mds;
 
 	list_for_each_entry(mds, &mdev_devices_list, next) {
-		if (uuid_le_cmp(mdev_uuid(mds->mdev), uuid) == 0)
+		if (guid_equal(mdev_uuid(mds->mdev), uuid))
 			return mds;
 	}
 
@@ -1032,7 +1032,7 @@ static int mtty_set_irqs(struct mdev_device *mdev, uint32_t flags,
 	return ret;
 }
 
-static int mtty_trigger_interrupt(uuid_le uuid)
+static int mtty_trigger_interrupt(const guid_t *uuid)
 {
 	int ret = -1;
 	struct mdev_state *mdev_state;
@@ -1442,7 +1442,8 @@ static int __init mtty_dev_init(void)
 
 	idr_init(&mtty_dev.vd_idr);
 
-	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK, MTTY_NAME);
+	ret = alloc_chrdev_region(&mtty_dev.vd_devt, 0, MINORMASK + 1,
+				  MTTY_NAME);
 
 	if (ret < 0) {
 		pr_err("Error: failed to register mtty_dev, err:%d\n", ret);
@@ -1450,7 +1451,7 @@ static int __init mtty_dev_init(void)
 	}
 
 	cdev_init(&mtty_dev.vd_cdev, &vd_fops);
-	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK);
+	cdev_add(&mtty_dev.vd_cdev, mtty_dev.vd_devt, MINORMASK + 1);
 
 	pr_info("major_number:%d\n", MAJOR(mtty_dev.vd_devt));
 
@@ -1487,7 +1488,7 @@ failed2:
 
 failed1:
 	cdev_del(&mtty_dev.vd_cdev);
-	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK);
+	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);
 
 all_done:
 	return ret;
@@ -1501,7 +1502,7 @@ static void __exit mtty_dev_exit(void)
 	device_unregister(&mtty_dev.dev);
 	idr_destroy(&mtty_dev.vd_idr);
 	cdev_del(&mtty_dev.vd_cdev);
-	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK);
+	unregister_chrdev_region(mtty_dev.vd_devt, MINORMASK + 1);
 	class_destroy(mtty_dev.vd_class);
 	mtty_dev.vd_class = NULL;
 	pr_info("mtty_dev: Unloaded!\n");