vt(4): Change vb_history_size from "int" to "unsigned int"

CID:		1230002, 1230003
MFC after:	1 week

2 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/vt/vt.h b/sys/dev/vt/vt.h
index bb83efb..b9303ba 100644
--- a/sys/dev/vt/vt.h
+++ b/sys/dev/vt/vt.h
@@ -182,7 +182,7 @@ struct vt_buf {
 #define	VBF_MTX_INIT	0x4	/* Mutex initialized. */
 #define	VBF_SCROLL	0x8	/* scroll locked mode. */
 #define	VBF_HISTORY_FULL 0x10	/* All rows filled. */
-	int			 vb_history_size;
+	unsigned int		 vb_history_size;
 #define	VBF_DEFAULT_HISTORY_SIZE	500
 	int			 vb_roffset;	/* (b) History rows offset. */
 	int			 vb_curroffset;	/* (b) Saved rows offset. */
@@ -200,7 +200,7 @@ void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *);
 void vtbuf_fill_locked(struct vt_buf *, const term_rect_t *, term_char_t);
 void vtbuf_init_early(struct vt_buf *);
 void vtbuf_init(struct vt_buf *, const term_pos_t *);
-void vtbuf_grow(struct vt_buf *, const term_pos_t *, int);
+void vtbuf_grow(struct vt_buf *, const term_pos_t *, unsigned int);
 void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t);
 void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *);
 void vtbuf_scroll_mode(struct vt_buf *vb, int yes);
diff --git a/sys/dev/vt/vt_buf.c b/sys/dev/vt/vt_buf.c
index 1c76ea5a..d468173 100644
--- a/sys/dev/vt/vt_buf.c
+++ b/sys/dev/vt/vt_buf.c
@@ -451,7 +451,7 @@ vtbuf_sethistory_size(struct vt_buf *vb, int size)
 }
 
 void
-vtbuf_grow(struct vt_buf *vb, const term_pos_t *p, int history_size)
+vtbuf_grow(struct vt_buf *vb, const term_pos_t *p, unsigned int history_size)
 {
 	term_char_t *old, *new, **rows, **oldrows, **copyrows, *row;
 	int bufsize, rowssize, w, h, c, r;