This is a note to let you know that I've just added the patch titled

serial: 8250_uniphier: fix error return code in uniphier_uart_probe()

to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: serial-8250_uniphier-fix-error-return-code-in-uniphier_uart_probe.patch and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 7defa77d2baca4d6eb85234f10f38ab618332e75 Mon Sep 17 00:00:00 2001

From: Wei Yongjun weiyongjun1@huawei.com Date: Thu, 4 Jan 2018 07:42:15 +0000 Subject: serial: 8250_uniphier: fix error return code in uniphier_uart_probe()

From: Wei Yongjun weiyongjun1@huawei.com

commit 7defa77d2baca4d6eb85234f10f38ab618332e75 upstream.

Fix to return a negative error code from the port register error handling case instead of 0, as done elsewhere in this function.

Fixes: 39be40ce066d ("serial: 8250_uniphier: fix serial port index in private data") Signed-off-by: Wei Yongjun weiyongjun1@huawei.com Acked-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/tty/serial/8250/8250_uniphier.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/8250/8250_uniphier.c +++ b/drivers/tty/serial/8250/8250_uniphier.c @@ -250,12 +250,13 @@ static int uniphier_uart_probe(struct pl up.dl_read = uniphier_serial_dl_read; up.dl_write = uniphier_serial_dl_write;

- priv->line = serial8250_register_8250_port(&up); - if (priv->line < 0) { + ret = serial8250_register_8250_port(&up); + if (ret < 0) { dev_err(dev, "failed to register 8250 port\n"); clk_disable_unprepare(priv->clk); return ret; } + priv->line = ret;

platform_set_drvdata(pdev, priv);

Patches currently in stable-queue which might be from weiyongjun1@huawei.com are

queue-4.15/test_firmware-fix-missing-unlock-on-error-in-config_num_requests_store.patch queue-4.15/serial-8250_uniphier-fix-error-return-code-in-uniphier_uart_probe.patch