[PATCH 5.0 12/93] auxdisplay: hd44780: Fix memory leak on ->remove()

From: Greg Kroah-Hartman
Date: Thu Apr 18 2019 - 14:09:43 EST


[ Upstream commit 41c8d0adf3c4df1867d98cee4a2c4531352a33ad ]

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

Fixes: d47d88361fee ("auxdisplay: Add HD44780 Character LCD support")
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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;
}

--
2.19.1