linux-kernel - [PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250224093810.2965667-1-haoxiang_li2024@163.com>
Date: Mon, 24 Feb 2025 17:38:10 +0800
From: Haoxiang Li <haoxiang_li2024@....com>
To: andy@...nel.org,
	geert@...ux-m68k.org,
	haoxiang_li2024@....com,
	u.kleine-koenig@...gutronix.de,
	erick.archer@...look.com,
	ojeda@...nel.org,
	w@....eu,
	poeschel@...onage.de
Cc: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780_probe()

Variable "lcd" allocated by charlcd_alloc() should be
released by charlcd_free(). The following patch changed
kfree(lcd) to charlcd_free(lcd) to fix an API misuse.

Fixes: 718e05ed92ec ("auxdisplay: Introduce hd44780_common.[ch]")
Cc: stable@...r.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@....com>
---
 drivers/auxdisplay/hd44780.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
index 0526f0d90a79..a1729196bc82 100644
--- a/drivers/auxdisplay/hd44780.c
+++ b/drivers/auxdisplay/hd44780.c
@@ -313,7 +313,7 @@ static int hd44780_probe(struct platform_device *pdev)
 fail3:
 	kfree(hd);
 fail2:
-	kfree(lcd);
+	charlcd_free(lcd);
 fail1:
 	kfree(hdc);
 	return ret;
-- 
2.25.1