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Jianglei Nie 6cd37f8232 auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()

[ Upstream commit ddf75a86ab ]

hd44780_probe() allocates a memory chunk for hd with kzalloc() and
makes "lcd->drvdata->hd44780" point to it. When we call hd44780_remove(),
we should release all relevant memory and resource. But "lcd->drvdata
->hd44780" is not released, which will lead to a memory leak.

We should release the "lcd->drvdata->hd44780" in hd44780_remove() to fix
the memory leak bug.

Fixes: 718e05ed92 ("auxdisplay: Introduce hd44780_common.[ch]")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-03-11 13:55:16 +01:00

arm-charlcd.c

auxdisplay: Replace HTTP links with HTTPS ones

2020-08-08 16:10:03 +02:00

cfag12864b.c

auxdisplay: Replace symbolic permissions with octal permissions

2021-07-16 07:42:35 +02:00

cfag12864bfb.c

auxdisplay: cfag12864bfb: code indent should use tabs where possible

2021-10-22 00:13:16 +02:00

charlcd.c

auxdisplay: charlcd: checking for pointer reference before dereferencing