Patch "serial: 8250_dw: Disable clock on error" has been added to the 4.15-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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 4.15-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-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From foo@baz Thu Mar 22 14:03:39 CET 2018
From: Stefan Potyra <Stefan.Potyra@xxxxxxxxxxxxxx>
Date: Wed, 6 Dec 2017 16:46:12 +0100
Subject: serial: 8250_dw: Disable clock on error

From: Stefan Potyra <Stefan.Potyra@xxxxxxxxxxxxxx>


[ 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@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 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
@@ -509,7 +509,8 @@ 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@xxxxxxxxxxxxxx are

queue-4.15/serial-8250_dw-disable-clock-on-error.patch



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]