This is a note to let you know that I've just added the patch titled
Revert "serial: uartps: Do not allow use aliases >=
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 91c9dfa25c7f95b543c280e0edf1fd8de6e90985 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xxxxxxxxxx>
Date: Fri, 3 Apr 2020 11:24:33 +0200
Subject: Revert "serial: uartps: Do not allow use aliases >=
MAX_UART_INSTANCES"
This reverts commit 2088cfd882d0403609bdf426e9b24372fe1b8337.
As Johan says, this driver needs a lot more work and these changes are
only going in the wrong direction:
https://lkml.kernel.org/r/20190523091839.GC568@localhost
Reported-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/dac3898e3e32d963f357fb436ac9a7ac3cbcf933.1585905873.git.michal.simek@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/xilinx_uartps.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 412bfc51f546..9db3cd120057 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1712,8 +1712,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
uart_unregister_driver(cdns_uart_data->cdns_uart_driver);
err_out_id:
mutex_lock(&bitmap_lock);
- if (cdns_uart_data->id < MAX_UART_INSTANCES)
- clear_bit(cdns_uart_data->id, bitmap);
+ clear_bit(cdns_uart_data->id, bitmap);
mutex_unlock(&bitmap_lock);
return rc;
}
@@ -1738,8 +1737,7 @@ static int cdns_uart_remove(struct platform_device *pdev)
rc = uart_remove_one_port(cdns_uart_data->cdns_uart_driver, port);
port->mapbase = 0;
mutex_lock(&bitmap_lock);
- if (cdns_uart_data->id < MAX_UART_INSTANCES)
- clear_bit(cdns_uart_data->id, bitmap);
+ clear_bit(cdns_uart_data->id, bitmap);
mutex_unlock(&bitmap_lock);
clk_disable_unprepare(cdns_uart_data->uartclk);
clk_disable_unprepare(cdns_uart_data->pclk);
--
2.26.1
