[PATCH 14/14] NVMe: Rework "NVMe: Disable admin queue on init failure" commit

From: Alexander Gordeev
Date: Tue Jan 28 2014 - 03:38:35 EST


This update partially reverts commit c5dc919 ("NVMe: Disable
admin queue on init failure") to roll back easy readable
nvme_free_queues() function. Commit's c5dc919 functionality
aimed to free admin queue IRQ on init failure is preserved.

Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
---
drivers/block/nvme-core.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 83d57b3..a51f342 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1161,11 +1161,11 @@ static void nvme_free_queue(struct nvme_queue *nvmeq)
dev->queues[qid] = NULL;
}

-static void nvme_free_queues(struct nvme_dev *dev, int lowest)
+static void nvme_free_queues(struct nvme_dev *dev)
{
int i;

- for (i = dev->queue_count - 1; i >= lowest; i--)
+ for (i = dev->queue_count - 1; i >= 0; i--)
nvme_free_queue(dev->queues[i]);
}

@@ -2035,7 +2035,8 @@ static int nvme_setup_io_queues(struct nvme_dev *dev, int nr_io_queues)
return 0;

free_queues:
- nvme_free_queues(dev, 1);
+ for (i = dev->queue_count - 1; i > 0; i--)
+ nvme_free_queue(dev->queues[i]);
return result;
}

@@ -2601,7 +2602,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
shutdown:
nvme_dev_shutdown(dev);
release_pools:
- nvme_free_queues(dev, 0);
+ nvme_free_queues(dev);
nvme_release_prp_pools(dev);
release:
nvme_release_instance(dev);
@@ -2625,7 +2626,7 @@ static void nvme_remove(struct pci_dev *pdev)
misc_deregister(&dev->miscdev);
nvme_dev_remove(dev);
nvme_dev_shutdown(dev);
- nvme_free_queues(dev, 0);
+ nvme_free_queues(dev);
nvme_release_instance(dev);
nvme_release_prp_pools(dev);
kref_put(&dev->kref, nvme_free_dev);
--
1.7.7.6

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