Unverified Commit d04d0a78 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!9512 drm: vc4: Fix possible null pointer dereference 

Merge Pull Request from: @ci-robot 
 
PR sync from: Ze Zuo <zuoze1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/LTF2TQKOPW2ZNGHFZI4PBA2KCOPO7QI4/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6SGI 
 
Link:https://gitee.com/openeuler/kernel/pulls/9512

 

Reviewed-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 76bbbaee 2cbc996b

drivers/gpu/drm/vc4/vc4_hdmi.c

+2 −0
Original line number Diff line number Diff line
@@ -1086,6 +1086,8 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *hdmi) 
	 * This VC/MMU should probably be exposed to avoid this kind of hacks.

	 */

	addr = of_get_address(dev->of_node, 1, NULL, NULL);

	if (!addr)

		return -EINVAL;

	hdmi->audio.dma_data.addr = be32_to_cpup(addr) + VC4_HD_MAI_DATA;

	hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;

	hdmi->audio.dma_data.maxburst = 2;