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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-05-05 20:46:21 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-18 09:18:09 +0200 |
| commit | bae1a3b8d9cea787fe9f038a5e2025ee0d318585 (patch) | |
| tree | f57a50e64a1f4eed30be1393d0e1c38e6fd1c72f /mm/truncate.c | |
| parent | 1f0f6cff0c1d513da5aa3b4bd57777c895d51510 (diff) | |
tty/serial: digicolor: fix possible null-ptr-deref in digicolor_uart_probe()
commit 447ee1516f19f534a228dda237eddb202f23e163 upstream.
It will cause null-ptr-deref when using 'res', if platform_get_resource()
returns NULL, so move using 'res' after devm_ioremap_resource() that
will check it to avoid null-ptr-deref.
And use devm_platform_get_and_ioremap_resource() to simplify code.
Fixes: 5930cb3511df ("serial: driver for Conexant Digicolor USART")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Baruch Siach <baruch@tkos.co.il>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220505124621.1592697-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/truncate.c')
0 files changed, 0 insertions, 0 deletions