Re: [PATCH v2 10/19] fbcon: Ditch error handling for con2fb_release_oldinfo

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Am 08.02.22 um 22:08 schrieb Daniel Vetter:
It doesn't ever fail anymore.

Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Claudio Suarez <cssk@xxxxxxxx>
Cc: Du Cheng <ducheng2@xxxxxxxxx>
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>

Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

---
  drivers/video/fbdev/core/fbcon.c | 37 +++++++++++---------------------
  1 file changed, 13 insertions(+), 24 deletions(-)

diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 3e1a3e7bf527..a60891005d44 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -739,9 +739,8 @@ static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info,
  	return err;
  }
-static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo,
-				  struct fb_info *newinfo, int unit,
-				  int oldidx, int found)
+static void con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo,
+				   struct fb_info *newinfo)
  {
  	struct fbcon_ops *ops = oldinfo->fbcon_par;
  	int ret;
@@ -770,8 +769,6 @@ static int con2fb_release_oldinfo(struct vc_data *vc, struct fb_info *oldinfo,
  				"detected unhandled fb_set_par error, "
  				"error code %d\n", ret);
  	}
-
-	return 0;
  }
static void con2fb_init_display(struct vc_data *vc, struct fb_info *info,
@@ -825,7 +822,7 @@ static int set_con2fb_map(int unit, int newidx, int user)
  	int oldidx = con2fb_map[unit];
  	struct fb_info *info = registered_fb[newidx];
  	struct fb_info *oldinfo = NULL;
-	int found, err = 0;
+	int found, err = 0, show_logo;
WARN_CONSOLE_UNLOCKED(); @@ -854,18 +851,15 @@ static int set_con2fb_map(int unit, int newidx, int user)
  	 * fbcon should release it.
  	 */
  	if (!err && oldinfo && !search_fb_in_map(oldidx))
-		err = con2fb_release_oldinfo(vc, oldinfo, info, unit, oldidx,
-					     found);
+		con2fb_release_oldinfo(vc, oldinfo, info);
- if (!err) {
-		int show_logo = (fg_console == 0 && !user &&
-				 logo_shown != FBCON_LOGO_DONTSHOW);
+	show_logo = (fg_console == 0 && !user &&
+			 logo_shown != FBCON_LOGO_DONTSHOW);
- if (!found)
-			fbcon_add_cursor_work(info);
-		con2fb_map_boot[unit] = newidx;
-		con2fb_init_display(vc, info, unit, show_logo);
-	}
+	if (!found)
+		fbcon_add_cursor_work(info);
+	con2fb_map_boot[unit] = newidx;
+	con2fb_init_display(vc, info, unit, show_logo);
if (!search_fb_in_map(info_idx))
  		info_idx = newidx;
@@ -2769,7 +2763,7 @@ static inline void fbcon_unbind(void) {}
  /* called with console_lock held */
  void fbcon_fb_unbind(struct fb_info *info)
  {
-	int i, new_idx = -1, ret = 0;
+	int i, new_idx = -1;
  	int idx = info->node;
WARN_CONSOLE_UNLOCKED();
@@ -2803,13 +2797,8 @@ void fbcon_fb_unbind(struct fb_info *info)
  			if (con2fb_map[i] == idx) {
  				con2fb_map[i] = -1;
  				if (!search_fb_in_map(idx)) {
-					ret = con2fb_release_oldinfo(vc_cons[i].d,
-								     info, NULL, i,
-								     idx, 0);
-					if (ret) {
-						con2fb_map[i] = idx;
-						return;
-					}
+					con2fb_release_oldinfo(vc_cons[i].d,
+							       info, NULL);
  				}
  			}
  		}

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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