This is a note to let you know that I've just added the patch titled
gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent
to the 6.4-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:
gpio-ws16c48-fix-off-by-one-error-in-ws16c48-resource-region-extent.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 33f83d13ded164cd49ce2a3bd2770115abc64e6f Mon Sep 17 00:00:00 2001
From: William Breathitt Gray <william.gray@xxxxxxxxxx>
Date: Thu, 10 Aug 2023 18:00:44 -0400
Subject: gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent
From: William Breathitt Gray <william.gray@xxxxxxxxxx>
commit 33f83d13ded164cd49ce2a3bd2770115abc64e6f upstream.
The WinSystems WS16C48 I/O address region spans offsets 0x0 through 0xA,
which is a total of 11 bytes. Fix the WS16C48_EXTENT define to the
correct value of 11 so that access to necessary device registers is
properly requested in the ws16c48_probe() callback by the
devm_request_region() function call.
Fixes: 2c05a0f29f41 ("gpio: ws16c48: Implement and utilize register structures")
Cc: stable@xxxxxxxxxxxxxxx
Cc: Paul Demetrotion <pdemetrotion@xxxxxxxxxxxxxx>
Signed-off-by: William Breathitt Gray <william.gray@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-ws16c48.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpio/gpio-ws16c48.c
+++ b/drivers/gpio/gpio-ws16c48.c
@@ -18,7 +18,7 @@
#include <linux/spinlock.h>
#include <linux/types.h>
-#define WS16C48_EXTENT 10
+#define WS16C48_EXTENT 11
#define MAX_NUM_WS16C48 max_num_isa_dev(WS16C48_EXTENT)
static unsigned int base[MAX_NUM_WS16C48];
Patches currently in stable-queue which might be from william.gray@xxxxxxxxxx are
queue-6.4/gpio-ws16c48-fix-off-by-one-error-in-ws16c48-resource-region-extent.patch
