We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.
Just put the cdrom kref and have the unwinding be done by
sr_kref_release().
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Luis Chamberlain <mcgrof@xxxxxxxxxx>
---
drivers/scsi/sr.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 8b17b35283aa..d769057b25a0 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -727,7 +727,12 @@ 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) {
+ kref_put(&cd->kref, sr_kref_release);
+ goto fail;
+ }
sdev_printk(KERN_DEBUG, sdev,
"Attached scsi CD-ROM %s\n", cd->cdi.name);
--
2.30.2
