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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 28 Jan 2014 09:39:00 +0100
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alexander Gordeev <agordeev@...hat.com>,
	Keith Busch <keith.busch@...el.com>,
	Matthew Wilcox <willy@...ux.intel.com>,
	linux-nvme@...ts.infradead.org
Subject: [PATCH 14/14] NVMe: Rework "NVMe: Disable admin queue on init failure" commit

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@...hat.com>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/