If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

   drivers/pinctrl/freescale/pinctrl-imx8ulp.c: In function
'imx8ulp_pmx_gpio_set_direction':

quoted

quoted

drivers/pinctrl/freescale/pinctrl-imx8ulp.c:228:35: warning:
'pin_reg' is used uninitialized in this function [-Wuninitialized]

     228 |  reg = readl(ipctl->base + pin_reg->mux_reg);
         |                                   ^~

Jacky,
Can you fix it ASAP?

Regards
Aisheng

vim +/pin_reg +228 drivers/pinctrl/freescale/pinctrl-imx8ulp.c

   219
   220	static int imx8ulp_pmx_gpio_set_direction(struct pinctrl_dev
*pctldev,
   221						  struct pinctrl_gpio_range *range,
   222						  unsigned offset, bool input)
   223	{
   224		struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
   225		const struct imx_pin_reg *pin_reg;
   226		u32 reg;
   227
 > 228		reg = readl(ipctl->base + pin_reg->mux_reg);
   229		if (input)
   230			reg = (reg & ~BM_OBE_ENABLED) | BM_IBE_ENABLED;
   231		else
   232			reg = (reg & ~BM_IBE_ENABLED) | BM_OBE_ENABLED;
   233		writel(reg, ipctl->base + pin_reg->mux_reg);
   234
   235		return 0;
   236	}
   237

---
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