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

1 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/mlx/mlx.c b/sys/dev/mlx/mlx.c
index c7c7be7f..368530d 100644
--- a/sys/dev/mlx/mlx.c
+++ b/sys/dev/mlx/mlx.c
@@ -711,7 +711,7 @@ mlx_submit_buf(struct mlx_softc *sc, mlx_bio *bp)
 int
 mlx_open(struct cdev *dev, int flags, int fmt, struct thread *td)
 {
-    int			unit = minor(dev);
+    int			unit = dev2unit(dev);
     struct mlx_softc	*sc = devclass_get_softc(mlx_devclass, unit);
 
     sc->mlx_state |= MLX_STATE_OPEN;
@@ -724,7 +724,7 @@ mlx_open(struct cdev *dev, int flags, int fmt, struct thread *td)
 int
 mlx_close(struct cdev *dev, int flags, int fmt, struct thread *td)
 {
-    int			unit = minor(dev);
+    int			unit = dev2unit(dev);
     struct mlx_softc	*sc = devclass_get_softc(mlx_devclass, unit);
 
     sc->mlx_state &= ~MLX_STATE_OPEN;
@@ -737,7 +737,7 @@ mlx_close(struct cdev *dev, int flags, int fmt, struct thread *td)
 int
 mlx_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td)
 {
-    int				unit = minor(dev);
+    int				unit = dev2unit(dev);
     struct mlx_softc		*sc = devclass_get_softc(mlx_devclass, unit);
     struct mlx_rebuild_request	*rb = (struct mlx_rebuild_request *)addr;
     struct mlx_rebuild_status	*rs = (struct mlx_rebuild_status *)addr;