FAILED: patch "[PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780.c" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780.c" failed to apply to 5.15-stable tree

[gregkh]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 9b98a7d2e5f4e2beeff88f6571da0cdc5883c7fb
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025041714-projector-suffix-41d5@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 9b98a7d2e5f4e2beeff88f6571da0cdc5883c7fb Mon Sep 17 00:00:00 2001
From: Haoxiang Li <haoxiang_li2024@163.com>
Date: Mon, 24 Feb 2025 18:15:27 +0800
Subject: [PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780.c

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

Fixes: 718e05ed92ec ("auxdisplay: Introduce hd44780_common.[ch]")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
index 0526f0d90a79..9d0ae9c02e9b 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;
@@ -328,7 +328,7 @@ static void hd44780_remove(struct platform_device *pdev)
 	kfree(hdc->hd44780);
 	kfree(lcd->drvdata);
 
-	kfree(lcd);
+	charlcd_free(lcd);
 }
 
 static const struct of_device_id hd44780_of_match[] = {