This is a note to let you know that I've just added the patch titled
pinctrl: pinctrl-imx: don't use invalid value of conf_reg
to the 3.19-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:
pinctrl-pinctrl-imx-don-t-use-invalid-value-of-conf_reg.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4ff0f034e95d65f8f063a362dfcf86e986377a82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Tue, 27 Jan 2015 23:50:25 +0100
Subject: pinctrl: pinctrl-imx: don't use invalid value of conf_reg
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From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@xxxxxxxxxxxxxx>
commit 4ff0f034e95d65f8f063a362dfcf86e986377a82 upstream.
The right check for conf_reg to be invalid it testing against -1 not 0
as is done in the rest of the driver.
This fixes an oops that can be triggered by:
cat /sys/kernel/debug/pinctrl/43fac000.iomuxc/*
Fixes: ae75ff814538 ("pinctrl: pinctrl-imx: add imx pinctrl core driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/freescale/pinctrl-imx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -437,7 +437,7 @@ static void imx_pinconf_dbg_show(struct
const struct imx_pin_reg *pin_reg = &info->pin_regs[pin_id];
unsigned long config;
- if (!pin_reg || !pin_reg->conf_reg) {
+ if (!pin_reg || pin_reg->conf_reg == -1) {
seq_printf(s, "N/A");
return;
}
Patches currently in stable-queue which might be from u.kleine-koenig@xxxxxxxxxxxxxx are
queue-3.19/pinctrl-imx25-fix-numbering-for-pins.patch
queue-3.19/pinctrl-pinctrl-imx-don-t-use-invalid-value-of-conf_reg.patch
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