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nvme-multipath: set ana_log_size to 0 after free ana_log_buf

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Set ana_log_size to 0 when ana_log_buf is freed to make sure
nvme_mpath_init_identify will do the right thing when retrying
after an earlier failure.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Hou Tao 2021-12-03 19:47:15 +08:00 committed by Christoph Hellwig
parent 793fcab83f
commit c7c15ae3dc
1 changed files with 2 additions and 1 deletions
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3
drivers/nvme/host/multipath.c
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@ -866,7 +866,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
}
if (ana_log_size > ctrl->ana_log_size) {
nvme_mpath_stop(ctrl);
kfree(ctrl->ana_log_buf);
nvme_mpath_uninit(ctrl);
ctrl->ana_log_buf = kmalloc(ana_log_size, GFP_KERNEL);
if (!ctrl->ana_log_buf)
return -ENOMEM;
@ -886,4 +886,5 @@ void nvme_mpath_uninit(struct nvme_ctrl *ctrl)
{
kfree(ctrl->ana_log_buf);
ctrl->ana_log_buf = NULL;
ctrl->ana_log_size = 0;
}