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nvme-pci: add debug message on fail to read CSTS

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Add a debug log spelling out that reading the CSTS register failed - to
distinguish this from other reasons for ENODEV.

Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Gerd Bayer 2025-10-24 13:05:32 +02:00 committed by Keith Busch
parent c9adfb5b68
commit 78723fe309
1 changed files with 1 additions and 0 deletions
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drivers/nvme/host/pci.c
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@ -2977,6 +2977,7 @@ static int nvme_pci_enable(struct nvme_dev *dev)
pci_set_master(pdev);
if (readl(dev->bar + NVME_REG_CSTS) == -1) {
dev_dbg(dev->ctrl.device, "reading CSTS register failed\n");
result = -ENODEV;
goto disable;
}