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

Daniel Vetter
2022-02-08T22:35:43Z

It doesn't ever fail anymore.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Claudio Suarez <cssk@net-c.es>
Cc: Du Cheng <ducheng2@gmail.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
---
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);
}
}
}
--
2.34.1