This is a note to let you know that I've just added the patch titled
serial: 8250_pci: Make PCI class test non fatal
to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 824d17c57b0abbcb9128fb3f7327fae14761914b Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Thu, 24 Jan 2019 23:51:21 +0200
Subject: serial: 8250_pci: Make PCI class test non fatal
As has been reported the National Instruments serial cards have broken
PCI class.
The commit 7d8905d06405
("serial: 8250_pci: Enable device after we check black list")
made the PCI class check mandatory for the case when device is listed in
a quirk list.
Make PCI class test non fatal to allow broken card be enumerated.
Fixes: 7d8905d06405 ("serial: 8250_pci: Enable device after we check black list")
Cc: stable <stable@xxxxxxxxxxxxxxx>
Reported-by: Guan Yung Tseng <guan.yung.tseng@xxxxxx>
Tested-by: Guan Yung Tseng <guan.yung.tseng@xxxxxx>
Tested-by: KHUENY.Gerhard <Gerhard.KHUENY@xxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250_pci.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index f80a300b5d68..48bd694a5fa1 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -3420,6 +3420,11 @@ static int
serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
{
int num_iomem, num_port, first_port = -1, i;
+ int rc;
+
+ rc = serial_pci_is_class_communication(dev);
+ if (rc)
+ return rc;
/*
* Should we try to make guesses for multiport serial devices later?
@@ -3647,10 +3652,6 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
board = &pci_boards[ent->driver_data];
- rc = serial_pci_is_class_communication(dev);
- if (rc)
- return rc;
-
rc = serial_pci_is_blacklisted(dev);
if (rc)
return rc;
--
2.20.1
