linux-kernel - [PATCH v1 1/4] auxdisplay: hd44780: Fix memory leak on ->remove()

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Date:   Tue, 12 Mar 2019 15:18:27 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>,
        Willy Tarreau <willy@...roxy.com>, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v1 1/4] auxdisplay: hd44780: Fix memory leak on ->remove()

We have to free on ->remove() the allocated resources on ->probe().

Fixes: d47d88361fee ("auxdisplay: Add HD44780 Character LCD support")
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/auxdisplay/hd44780.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
index 9ad93ea42fdc..3cde351fb5c9 100644
--- a/drivers/auxdisplay/hd44780.c
+++ b/drivers/auxdisplay/hd44780.c
@@ -280,6 +280,8 @@ static int hd44780_remove(struct platform_device *pdev)
 	struct charlcd *lcd = platform_get_drvdata(pdev);
 
 	charlcd_unregister(lcd);
+
+	kfree(lcd);
 	return 0;
 }
 
-- 
2.20.1