Unverified Commit 13325974 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!13203 [sync] PR-13186: virtio_pmem: Check device status before requesting flush 

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/13186 
 
PR sync from: Jinjie Ruan <ruanjinjie@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/TRVCSHOZMK4CE4KMXNBUGIYVZ7WU3APG/ 
 
https://gitee.com/src-openeuler/kernel/issues/IB2YUI 
 
Link:https://gitee.com/openeuler/kernel/pulls/13203

 

Reviewed-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents c87da583 cb90a888

drivers/nvdimm/nd_virtio.c

+9 −0
Original line number Diff line number Diff line
@@ -44,6 +44,15 @@ static int virtio_pmem_flush(struct nd_region *nd_region) 
	unsigned long flags;

	int err, err1;



	/*

	 * Don't bother to submit the request to the device if the device is

	 * not activated.

	 */

	if (vdev->config->get_status(vdev) & VIRTIO_CONFIG_S_NEEDS_RESET) {

		dev_info(&vdev->dev, "virtio pmem device needs a reset\n");

		return -EIO;

	}



	might_sleep();

	req_data = kmalloc(sizeof(*req_data), GFP_KERNEL);

	if (!req_data)