queue-5.0/auxdisplay-hd44780-fix-memory-leak-on-remove.patch

   1 From 354b64ac73aa1b13774169e87a08b0e3d2fc8a55 Mon Sep 17 00:00:00 2001
   2 From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
   3 Date: Tue, 12 Mar 2019 16:44:28 +0200
   4 Subject: auxdisplay: hd44780: Fix memory leak on ->remove()
   5
   6 [ Upstream commit 41c8d0adf3c4df1867d98cee4a2c4531352a33ad ]
   7
   8 We have to free on ->remove() the allocated resources on ->probe().
   9
  10 Fixes: d47d88361fee ("auxdisplay: Add HD44780 Character LCD support")
  11 Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
  12 Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
  13 Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
  14 Signed-off-by: Sasha Levin <sashal@kernel.org>
  15 ---
  16  drivers/auxdisplay/hd44780.c | 2 ++
  17  1 file changed, 2 insertions(+)
  18
  19 diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
  20 index 9ad93ea42fdc..3cde351fb5c9 100644
  21 --- a/drivers/auxdisplay/hd44780.c
  22 +++ b/drivers/auxdisplay/hd44780.c
  23 @@ -280,6 +280,8 @@ static int hd44780_remove(struct platform_device *pdev)
  24         struct charlcd *lcd = platform_get_drvdata(pdev);
  25
  26         charlcd_unregister(lcd);
  27 +
  28 +       kfree(lcd);
  29         return 0;
  30  }
  31
  32 --
  33 2.19.1
  34