pinctrl: pinctrl-imx: don't use invalid value of conf_reg
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: ae75ff8145
("pinctrl: pinctrl-imx: add imx pinctrl core driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -437,7 +437,7 @@ static void imx_pinconf_dbg_show(struct pinctrl_dev *pctldev,
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const struct imx_pin_reg *pin_reg = &info->pin_regs[pin_id];
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unsigned long config;
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if (!pin_reg || !pin_reg->conf_reg) {
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if (!pin_reg || pin_reg->conf_reg == -1) {
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seq_printf(s, "N/A");
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return;
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}
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