This is a note to let you know that I've just added the patch titled
serial: 8250_exar: Don't remove GPIO device on suspend
to the 5.4-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_exar-don-t-remove-gpio-device-on-suspend.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2b699e38a82cd6832f598936ca7ed5a17969d7ca
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Mon Feb 19 17:04:57 2024 +0200
serial: 8250_exar: Don't remove GPIO device on suspend
[ Upstream commit 73b5a5c00be39e23b194bad10e1ea8bb73eee176 ]
It seems a copy&paste mistake that suspend callback removes the GPIO
device. There is no counterpart of this action, means once suspended
there is no more GPIO device available untile full unbind-bind cycle
is performed. Remove suspicious GPIO device removal in suspend.
Fixes: d0aeaa83f0b0 ("serial: exar: split out the exar code from 8250_pci")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240219150627.2101198-2-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index 93367dea4d8a5..0dfe9ceb032a5 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -639,6 +639,7 @@ static void exar_pci_remove(struct pci_dev *pcidev)
for (i = 0; i < priv->nr; i++)
serial8250_unregister_port(priv->line[i]);
+ /* Ensure that every init quirk is properly torn down */
if (priv->board->exit)
priv->board->exit(pcidev);
}
@@ -653,10 +654,6 @@ static int __maybe_unused exar_suspend(struct device *dev)
if (priv->line[i] >= 0)
serial8250_suspend_port(priv->line[i]);
- /* Ensure that every init quirk is properly torn down */
- if (priv->board->exit)
- priv->board->exit(pcidev);
-
return 0;
}
