From: Janne Grunau <j@jannau.net>
Date: Wed, 17 Jan 2024 22:29:29 +0000 (+0100)
Subject: video: console: Fix buffer overflow in cmd 'font list'
X-Git-Url: http://git.dujemihanovic.xyz/img/%7B%7B%20%24style.RelPermalink%20%7D%7D?a=commitdiff_plain;h=24adbee344b2d6e8342f41928c82719187dbce09;p=u-boot.git

video: console: Fix buffer overflow in cmd 'font list'

vidconsole_ops.get_font is documented to return -ENOENT after the last
video_fontdata entry.

Signed-off-by: Janne Grunau <j@jannau.net>
---

diff --git a/drivers/video/console_core.c b/drivers/video/console_core.c
index d17764d0b0..939363653f 100644
--- a/drivers/video/console_core.c
+++ b/drivers/video/console_core.c
@@ -225,7 +225,7 @@ int console_simple_get_font(struct udevice *dev, int seq, struct vidfont_info *i
 {
 	info->name = fonts[seq].name;
 
-	return 0;
+	return info->name ? 0 : -ENOENT;
 }
 
 int console_simple_select_font(struct udevice *dev, const char *name, uint size)