From: Luis Chamberlain <mcgrof@kernel.org>
To: axboe@kernel.dk, justin@coraid.com, geert@linux-m68k.org,
ulf.hansson@linaro.org, hare@suse.de, tj@kernel.org,
philipp.reisner@linbit.com, lars.ellenberg@linbit.com,
jdike@addtoit.com, richard@nod.at,
anton.ivanov@cambridgegreys.com, johannes.berg@intel.com,
chris.obbard@collabora.com, krisman@collabora.com,
zhuyifei1999@gmail.com, thehajime@gmail.com, chris@zankel.net,
jcmvbkbc@gmail.com, tim@cyberelk.net
Cc: linux-xtensa@linux-xtensa.org, linux-um@lists.infradead.org,
linux-m68k@lists.linux-m68k.org, drbd-dev@lists.linbit.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>
Subject: [PATCH v2 01/15] z2ram: add error handling support for add_disk()
Date: Mon, 27 Sep 2021 15:00:56 -0700 [thread overview]
Message-ID: <20210927220110.1066271-2-mcgrof@kernel.org> (raw)
In-Reply-To: <20210927220110.1066271-1-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. Only the disk is cleaned up inside
z2ram_register_disk() as the caller deals with the rest.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
drivers/block/z2ram.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 4eef218108c6..ccc52c935faf 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -318,6 +318,7 @@ static const struct blk_mq_ops z2_mq_ops = {
static int z2ram_register_disk(int minor)
{
struct gendisk *disk;
+ int err;
disk = blk_mq_alloc_disk(&tag_set, NULL);
if (IS_ERR(disk))
@@ -333,8 +334,10 @@ static int z2ram_register_disk(int minor)
sprintf(disk->disk_name, "z2ram");
z2ram_gendisk[minor] = disk;
- add_disk(disk);
- return 0;
+ err = add_disk(disk);
+ if (err)
+ blk_cleanup_disk(disk);
+ return err;
}
static int __init z2_init(void)
--
2.30.2
next prev parent reply other threads:[~2021-09-27 22:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 22:00 [PATCH v2 00/15] block: third batch of add_disk() error handling conversions Luis Chamberlain
2021-09-27 22:00 ` Luis Chamberlain [this message]
2021-09-27 22:00 ` [PATCH v2 02/15] aoe: add error handling support for add_disk() Luis Chamberlain
2021-09-27 22:00 ` [PATCH v2 03/15] m68k/emu/nfblock: " Luis Chamberlain
2021-09-27 22:00 ` [PATCH v2 04/15] drbd: " Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 05/15] um/drivers/ubd_kern: " Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 06/15] xtensa/platforms/iss/simdisk: " Luis Chamberlain
2021-09-27 22:50 ` Max Filippov
2021-09-27 23:24 ` Jens Axboe
2021-09-27 22:01 ` [PATCH v2 07/15] n64cart: " Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 08/15] pcd: move the identify buffer into pcd_identify Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 09/15] pcd: cleanup initialization Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 10/15] pf: " Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 11/15] pd: " Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 12/15] pcd: add error handling support for add_disk() Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 13/15] pcd: fix ordering of unregister_cdrom() Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 14/15] pcd: capture errors on cdrom_register() Luis Chamberlain
2021-09-27 22:01 ` [PATCH v2 15/15] pd: add error handling support for add_disk() Luis Chamberlain
2021-09-27 22:29 ` [PATCH v2 00/15] block: third batch of add_disk() error handling conversions Jens Axboe
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