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Commit ec3ecad7 authored by Sunil Yellamelli's avatar Sunil Yellamelli
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soc: pinctrl-lpi-legacy : Add nullptr check 



fix for nullptr dereference issue

Change-Id: I245094107fe6a57ea5139604d244a03be3e63fcd
Signed-off-by: default avatarSunil Yellamelli <quic_syellame@quicinc.com>
parent 93ff7821

soc/pinctrl-lpi-legacy.c

+8 −5
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

 */



#include <linux/gpio.h>
@@ -224,12 +225,14 @@ static int lpi_gpio_set_mux(struct pinctrl_dev *pctldev, unsigned int function, 


	pad = pctldev->desc->pins[pin].drv_data;



        if (pad != NULL) {

	        pad->function = function;



	        val = lpi_gpio_read(pad, LPI_GPIO_REG_VAL_CTL);

	        val &= ~(LPI_GPIO_REG_FUNCTION_MASK);

	        val |= pad->function << LPI_GPIO_REG_FUNCTION_SHIFT;

	        lpi_gpio_write(pad, LPI_GPIO_REG_VAL_CTL, val);

        }

	return 0;

}