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Commit b70b4ad0 authored by Jeya R's avatar Jeya R
Browse files

msm: adsprpc: null pointer check for fl 



Adding a null pointer check for fl before
dereferencing.

Change-Id: I384e9f3980cf8c42cb2eeb554cc3c1e38c3520c0
Acked-by: default avatarKrishnaiah Tadakamalla <ktadakam@qti.qualcomm.com>
Signed-off-by: default avatarJeya R <jeyr@codeaurora.org>
parent d62dd07f

drivers/char/adsprpc.c

+9 −2
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -735,7 +735,9 @@ static void fastrpc_mmap_free(struct fastrpc_mmap *map, uint32_t flags) 
	if (!map)

		return;

	fl = map->fl;

	if (fl && !(map->flags == ADSP_MMAP_HEAP_ADDR ||

	if (!fl)

		return;

	if (!(map->flags == ADSP_MMAP_HEAP_ADDR ||

				map->flags == ADSP_MMAP_REMOTE_HEAP_ADDR)) {

		cid = fl->cid;

		VERIFY(err, cid >= ADSP_DOMAIN_ID && cid < NUM_CHANNELS);
@@ -3738,6 +3740,11 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int ioctl_num, 
	int size = 0, err = 0;

	uint32_t info;



	VERIFY(err, fl != NULL);

	if (err) {

		err = -EBADR;

		goto bail;

	}

	p.inv.fds = NULL;

	p.inv.attrs = NULL;

	p.inv.crc = NULL;