Make mlxcontrol work with more than one system drive:

- When searching for the next system drive, return the next one instead
  of always returning the first one.
- Plug fd lead and make sure that the MLX_NEXT_CHILD ioctl is called
  on the controller fd, not the disk's one.

While there, fix a cut-n-pase error in a warning.

Reviewed by:	jhb
Approved by:	kan (mentor)
MFC after:	1 month

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/dev/mlx/mlx.c b/sys/dev/mlx/mlx.c
index 76205e1..c7c7be7f 100644
--- a/sys/dev/mlx/mlx.c
+++ b/sys/dev/mlx/mlx.c
@@ -760,7 +760,7 @@ mlx_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct threa
 	    if (sc->mlx_sysdrive[i].ms_disk != 0) {
 		/* looking for the next one we come across? */
 		if (*arg == -1) {
-		    *arg = device_get_unit(sc->mlx_sysdrive[0].ms_disk);
+		    *arg = device_get_unit(sc->mlx_sysdrive[i].ms_disk);
 		    return(0);
 		}
 		/* we want the one after this one */