Unverified Commit 421a616c authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!6414 [sync] PR-5510: bus: mhi: host: Drop chan lock before queuing buffers 

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/5510 
 
PR sync from: Guan Jing <guanjing6@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/4SJ673UNMV4OTLMBARBGYDVSVX6EBO6T/ 
 
https://gitee.com/src-openeuler/kernel/issues/I97NHA 
 
Link:https://gitee.com/openeuler/kernel/pulls/6414

 

Reviewed-by: default avatarZucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents cfe96355 394b43dc

drivers/bus/mhi/core/main.c

+4 −0
Original line number Diff line number Diff line
@@ -570,6 +570,8 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl, 
			mhi_del_ring_element(mhi_cntrl, tre_ring);

			local_rp = tre_ring->rp;



			read_unlock_bh(&mhi_chan->lock);



			/* notify client */

			mhi_chan->xfer_cb(mhi_chan->mhi_dev, &result);
@@ -592,6 +594,8 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl, 
					kfree(buf_info->cb_buf);

				}

			}



			read_lock_bh(&mhi_chan->lock);

		}

		break;

	} /* CC_EOT */