diff mbox series

[v4,3/6] md: add error handling support for add_disk()

Message ID 20210927215958.1062466-4-mcgrof@kernel.org (mailing list archive)
State Not Applicable, archived
Delegated to: Mike Snitzer
Headers show
Series block: first batch of add_disk() error handling conversions | expand

Commit Message

Luis Chamberlain Sept. 27, 2021, 9:59 p.m. UTC 
We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.

We just do the unwinding of what was not done before, and are
sure to unlock prior to bailing.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Song Liu <songliubraving@fb.com>
---
 drivers/md/md.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 6c0c3d0d905a..6bd5ad3c30b4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5700,7 +5700,11 @@  static int md_alloc(dev_t dev, char *name)
 	disk->flags |= GENHD_FL_EXT_DEVT;
 	disk->events |= DISK_EVENT_MEDIA_CHANGE;
 	mddev->gendisk = disk;
-	add_disk(disk);
+	error = add_disk(disk);
+	if (error) {
+		blk_cleanup_disk(disk);
+		goto abort;
+	}
 
 	error = kobject_add(&mddev->kobj, &disk_to_dev(disk)->kobj, "%s", "md");
 	if (error) {