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Commit 7466c3a0 authored by Shazmaan Ali's avatar Shazmaan Ali Committed by Gerrit - the friendly Code Review server
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asoc: codecs: Add nullptr check



fix for nullptr deref issue

Change-Id: I26acf2c5c696038c6d5c64d858174b2f2c58a7d3
Signed-off-by: default avatarShazmaan Ali <quic_shazmaan@quicinc.com>
parent ad59b31b
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+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>
@@ -261,12 +262,14 @@ 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;
}