Unverified Commit b5baed0e authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10841 ALSA: gus: fix null pointer dereference on pointer block 

Merge Pull Request from: @ci-robot 
 
PR sync from: Kaixiong Yu <yukaixiong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/REC2SMAKS5LKG6WHAVVMBPQPNY74ZGXO/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9FNFE 
 
Link:https://gitee.com/openeuler/kernel/pulls/10841

 

Reviewed-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 5c1d8713 c58e3689

sound/isa/gus/gus_dma.c

+2 −0
Original line number Diff line number Diff line
@@ -141,6 +141,8 @@ static void snd_gf1_dma_interrupt(struct snd_gus_card * gus) 
	}

	block = snd_gf1_dma_next_block(gus);

	spin_unlock(&gus->dma_lock);

	if (!block)

		return;

	snd_gf1_dma_program(gus, block->addr, block->buf_addr, block->count, (unsigned short) block->cmd);

	kfree(block);

#if 0