From: Luis Chamberlain <mcgrof@kernel.org>
To: axboe@kernel.dk
Cc: hare@suse.de, bvanassche@acm.org, ming.lei@redhat.com,
hch@infradead.org, jack@suse.cz, osandov@fb.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>
Subject: [RFC 11/12] block/brd: add error handling support for add_disk()
Date: Thu, 15 Jul 2021 13:59:19 -0700 [thread overview]
Message-ID: <20210715205920.2023980-12-mcgrof@kernel.org> (raw)
In-Reply-To: <20210715205920.2023980-1-mcgrof@kernel.org>
We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
drivers/block/brd.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 95694113e38e..ca017ca315c5 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -375,6 +375,7 @@ static int brd_alloc(int i)
struct brd_device *brd;
struct gendisk *disk;
char buf[DISK_NAME_LEN];
+ int err = -ENOMEM;
brd = kzalloc(sizeof(*brd), GFP_KERNEL);
if (!brd)
@@ -413,14 +414,19 @@ static int brd_alloc(int i)
/* Tell the block layer that this is not a rotational device */
blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);
- add_disk(disk);
+ err = add_disk(disk);
+ if (err)
+ goto out_cleanup_disk;
+
list_add_tail(&brd->brd_list, &brd_devices);
return 0;
+out_cleanup_disk:
+ blk_cleanup_disk(disk);
out_free_dev:
kfree(brd);
- return -ENOMEM;
+ return err;
}
static void brd_probe(dev_t dev)
--
2.27.0
next prev parent reply other threads:[~2021-07-15 21:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 20:59 [RFC 00/12] block: *add_disk*() driver conversions __register_blkdev() Luis Chamberlain
2021-07-15 20:59 ` [RFC 01/12] floppy: fix add_disk() assumption on exit Luis Chamberlain
2021-07-15 20:59 ` [RFC 02/12] floppy: use blk_cleanup_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 03/12] floppy: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 04/12] scsi/sd: use blk_cleanup_queue() insted of put_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 05/12] scsi/sd: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 06/12] scsi/sr: use blk_cleanup_disk() instead of put_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 07/12] scsi/sr: add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` [RFC 08/12] block/ataflop: use the blk_cleanup_disk() helper Luis Chamberlain
2021-07-15 20:59 ` [RFC 09/12] block/ataflop: add a helper for removing disks Luis Chamberlain
2021-07-15 20:59 ` [RFC 10/12] block/ataflop add error handling support for add_disk() Luis Chamberlain
2021-07-15 20:59 ` Luis Chamberlain [this message]
2021-07-15 20:59 ` [RFC 12/12] block: make probe in blk_request_module() return an error Luis Chamberlain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210715205920.2023980-12-mcgrof@kernel.org \
--to=mcgrof@kernel.org \
--cc=axboe@kernel.dk \
--cc=bvanassche@acm.org \
--cc=hare@suse.de \
--cc=hch@infradead.org \
--cc=jack@suse.cz \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ming.lei@redhat.com \
--cc=osandov@fb.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).