From: <gregkh@linuxfoundation.org>
To: Stefan.Potyra@elektrobit.com, alexander.levin@microsoft.com,
gregkh@linuxfoundation.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "serial: 8250_dw: Disable clock on error" has been added to the 4.14-stable tree
Date: Thu, 22 Mar 2018 14:31:25 +0100 [thread overview]
Message-ID: <1521725485158209@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
serial: 8250_dw: Disable clock on error
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
serial-8250_dw-disable-clock-on-error.patch
and it can be found in the queue-4.14 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 foo@baz Thu Mar 22 14:26:48 CET 2018
From: Stefan Potyra <Stefan.Potyra@elektrobit.com>
Date: Wed, 6 Dec 2017 16:46:12 +0100
Subject: serial: 8250_dw: Disable clock on error
From: Stefan Potyra <Stefan.Potyra@elektrobit.com>
[ Upstream commit 8af016aa5a27c6a2505460eb4d83f1e70c38dc43 ]
If there is no clock rate for uartclk defined, disable the previously
enabled clock again.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: 23f5b3fdd04e serial: 8250_dw: only get the clock rate in one place
Signed-off-by: Stefan Potyra <Stefan.Potyra@elektrobit.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/8250/8250_dw.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -513,7 +513,8 @@ static int dw8250_probe(struct platform_
/* If no clock rate is defined, fail. */
if (!p->uartclk) {
dev_err(dev, "clock rate not defined\n");
- return -EINVAL;
+ err = -EINVAL;
+ goto err_clk;
}
data->pclk = devm_clk_get(dev, "apb_pclk");
Patches currently in stable-queue which might be from Stefan.Potyra@elektrobit.com are
queue-4.14/serial-8250_dw-disable-clock-on-error.patch
reply other threads:[~2018-03-22 13:32 UTC|newest]
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