Merge "disp: msm: sde: fix null pointer dereference" (65f4d0d9) · Commits · e / devices / android_kernel_fairphone_FP5

msm/sde/sde_hw_reg_dma_v1.c

+5 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
		* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
		*/

		#include <linux/iopoll.h>
		@@ -1191,6 +1192,10 @@ static int last_cmd_v1(struct sde_hw_ctl *ctl, enum sde_reg_dma_queue q,
		//Lack of block support will be caught by kick_off
		memset(&hw, 0, sizeof(hw));
		SET_UP_REG_DMA_REG(hw, reg_dma, kick_off.dma_type);
		if (hw.hwversion == 0) {
		DRM_ERROR("DMA type %d is unsupported\n", kick_off.dma_type);
		return -EOPNOTSUPP;
		}

		SDE_EVT32(SDE_EVTLOG_FUNC_ENTRY, mode, ctl->idx, kick_off.queue_select,
		kick_off.dma_type, kick_off.op);