[PATCH AUTOSEL 5.15 21/23] fbdev: fbcon: Destroy mutex on freeing struct fb_info

[Sasha Levin]

From: Shigeru Yoshida <syosh...@redhat.com>

[ Upstream commit 58559dfc1ebba2ae0c7627dc8f8991ae1984c6e3 ]

It's needed to destroy bl_curve_mutex on freeing struct fb_info since
the mutex is embedded in the structure and initialized when it's
allocated.

Signed-off-by: Shigeru Yoshida <syosh...@redhat.com>
Signed-off-by: Helge Deller <del...@gmx.de>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/video/fbdev/core/fbsysfs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/video/fbdev/core/fbsysfs.c 
b/drivers/video/fbdev/core/fbsysfs.c
index ce699396d6bad..09ee27e7fc25f 100644
--- a/drivers/video/fbdev/core/fbsysfs.c
+++ b/drivers/video/fbdev/core/fbsysfs.c
@@ -84,6 +84,10 @@ void framebuffer_release(struct fb_info *info)
        if (WARN_ON(refcount_read(&info->count)))
                return;
 
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
+       mutex_destroy(&info->bl_curve_mutex);
+#endif
+
        kfree(info->apertures);
        kfree(info);
 }
-- 
2.35.1