linux-kernel - [PATCH 1/2] nvme-pci: Print error message on failure in nvme

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Message-Id: <20251020-nvme_probefail-v1-1-a420046d98f0@linux.ibm.com>
Date: Mon, 20 Oct 2025 17:29:07 +0200
From: Gerd Bayer <gbayer@...ux.ibm.com>
To: Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>,
        Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>
Cc: Niklas Schnelle <schnelle@...ux.ibm.com>, linux-nvme@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Gerd Bayer <gbayer@...ux.ibm.com>
Subject: [PATCH 1/2] nvme-pci: Print error message on failure in nvme_probe

Add a new error message like
nvme nvme0: probe failed on 2004:00:00.0 (result: -19)
that makes failures to probe visible in the kernel log.

Signed-off-by: Gerd Bayer <gbayer@...ux.ibm.com>
---
 drivers/nvme/host/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index c916176bd9f058b49e6e6768675711df52b15765..7544c4bac2c4a230d32cf729abb9e94bf93a921f 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3519,6 +3519,8 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 out_dev_unmap:
 	nvme_dev_unmap(dev);
 out_uninit_ctrl:
+	dev_err(dev->ctrl.device, "probe failed on %s (result: %d)\n",
+		dev_name(&pdev->dev), result);
 	nvme_uninit_ctrl(&dev->ctrl);
 out_put_ctrl:
 	nvme_put_ctrl(&dev->ctrl);

-- 
2.48.1