Thread (25 messages) 25 messages, 7 authors, 2021-09-13
STALE1756d REVIEWED: 4 (4M)
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  5. v4 [diff vs current]

[PATCH v3 2/8] scsi/sr: add error handling support for add_disk()

From: Luis Chamberlain <mcgrof@kernel.org>
Date: 2021-08-30 21:27:26
Also in: dm-devel, linux-mmc, linux-nvme, linux-scsi, lkml
Subsystem: scsi subsystem, the rest · Maintainers: "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds

We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/scsi/sr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 2942a4ec9bdd..72fd21844367 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -779,7 +779,10 @@ static int sr_probe(struct device *dev)
 	dev_set_drvdata(dev, cd);
 	disk->flags |= GENHD_FL_REMOVABLE;
 	sr_revalidate_disk(cd);
-	device_add_disk(&sdev->sdev_gendev, disk, NULL);
+
+	error = device_add_disk(&sdev->sdev_gendev, disk, NULL);
+	if (error)
+		goto fail_minor;
 
 	sdev_printk(KERN_DEBUG, sdev,
 		    "Attached scsi CD-ROM %s\n", cd->cdi.name);
-- 
2.30.2
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