[PATCH] fbcon: Code cleanups

- replace kmalloc with kzalloc
- remove repeated define (FONTCHHCNT)
- remove unneeded local variable (redraw) in ypan_{up|down}_redraw
- add and delete cursor timer in fbcon_switch() if old_info != info

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 4f6fc78..041d069 100644 (file)
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -687,13 +687,12 @@ static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info,
                err = -ENODEV;
 
        if (!err) {
-               ops = kmalloc(sizeof(struct fbcon_ops), GFP_KERNEL);
+               ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL);
                if (!ops)
                        err = -ENOMEM;
        }
 
        if (!err) {
-               memset(ops, 0, sizeof(struct fbcon_ops));
                info->fbcon_par = ops;
                set_blitting_type(vc, info);
        }
@@ -919,13 +918,12 @@ static const char *fbcon_startup(void)
                return NULL;
        }
 
-       ops = kmalloc(sizeof(struct fbcon_ops), GFP_KERNEL);
+       ops = kzalloc(sizeof(struct fbcon_ops), GFP_KERNEL);
        if (!ops) {
                module_put(owner);
                return NULL;
        }
 
-       memset(ops, 0, sizeof(struct fbcon_ops));
        ops->currcon = -1;
        ops->graphics = 1;
        ops->cur_rotate = -1;
@@ -1408,16 +1406,13 @@ static __inline__ void ypan_up_redraw(struct vc_data *vc, int t, int count)
        struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
        struct fbcon_ops *ops = info->fbcon_par;
        struct display *p = &fb_display[vc->vc_num];
-       int redraw = 0;
 
        p->yscroll += count;
+
        if (p->yscroll > p->vrows - vc->vc_rows) {
                p->yscroll -= p->vrows - vc->vc_rows;
-               redraw = 1;
-       }
-
-       if (redraw)
                fbcon_redraw_move(vc, p, t + count, vc->vc_rows - count, t);
+       }
 
        ops->var.xoffset = 0;
        ops->var.yoffset = p->yscroll * vc->vc_font.height;
@@ -1459,16 +1454,13 @@ static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count)
        struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
        struct fbcon_ops *ops = info->fbcon_par;
        struct display *p = &fb_display[vc->vc_num];
-       int redraw = 0;
 
        p->yscroll -= count;
+
        if (p->yscroll < 0) {
                p->yscroll += p->vrows - vc->vc_rows;
-               redraw = 1;
-       }
-
-       if (redraw)
                fbcon_redraw_move(vc, p, t, vc->vc_rows - count, t + count);
+       }
 
        ops->var.xoffset = 0;
        ops->var.yoffset = p->yscroll * vc->vc_font.height;
@@ -2105,8 +2097,11 @@ static int fbcon_switch(struct vc_data *vc)
                                 info->flags & FBINFO_MISC_ALWAYS_SETPAR)) {
                if (info->fbops->fb_set_par)
                        info->fbops->fb_set_par(info);
-               fbcon_del_cursor_timer(old_info);
-               fbcon_add_cursor_timer(info);
+
+               if (old_info != info) {
+                       fbcon_del_cursor_timer(old_info);
+                       fbcon_add_cursor_timer(info);
+               }
        }
 
        set_blitting_type(vc, info);

diff --git a/drivers/video/console/fbcon_rotate.h b/drivers/video/console/fbcon_rotate.h
index 1b8f92f..75be5ce 100644 (file)
--- a/drivers/video/console/fbcon_rotate.h
+++ b/drivers/video/console/fbcon_rotate.h
@@ -11,8 +11,6 @@
 #ifndef _FBCON_ROTATE_H
 #define _FBCON_ROTATE_H
 
-#define FNTCHARCNT(fd) (((int *)(fd))[-3])
-
 #define GETVYRES(s,i) ({                           \
         (s == SCROLL_REDRAW || s == SCROLL_MOVE) ? \
         (i)->var.yres : (i)->var.yres_virtual; })