Replace all calls to minor() with dev2unit().

After I removed all the unit2minor()/minor2unit() calls from the kernel
yesterday, I realised calling minor() everywhere is quite confusing.
Character devices now only have the ability to store a unit number, not
a minor number. Remove the confusion by using dev2unit() everywhere.

This commit could also be considered as a bug fix. A lot of drivers call
minor(), while they should actually be calling dev2unit(). In -CURRENT
this isn't a problem, but it turns out we never had any problem reports
related to that issue in the past. I suspect not many people connect
more than 256 pieces of the same hardware.

Reviewed by:	kib

2 files changed, 2 insertions, 2 deletions

diff --git a/sys/dev/drm/drm_drv.c b/sys/dev/drm/drm_drv.c
index 7ed2393..b41b53d 100644
--- a/sys/dev/drm/drm_drv.c
+++ b/sys/dev/drm/drm_drv.c
@@ -713,7 +713,7 @@ int drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p)
 	struct drm_device *dev = NULL;
 	int retcode = 0;
 
-	dev = DRIVER_SOFTC(minor(kdev));
+	dev = DRIVER_SOFTC(dev2unit(kdev));
 
 	DRM_DEBUG( "open_count = %d\n", dev->open_count );
 
diff --git a/sys/dev/drm/drm_fops.c b/sys/dev/drm/drm_fops.c
index 23cc1c0..f6eacd2 100644
--- a/sys/dev/drm/drm_fops.c
+++ b/sys/dev/drm/drm_fops.c
@@ -62,7 +62,7 @@ drm_file_t *drm_find_file_by_proc(struct drm_device *dev, DRM_STRUCTPROC *p)
 int drm_open_helper(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p,
 		    struct drm_device *dev)
 {
-	int	     m = minor(kdev);
+	int	     m = dev2unit(kdev);
 	drm_file_t   *priv;
 	int retcode;