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 01/15] z2ram: add error handling support for add_disk()
Date: Mon, 30 Aug 2021 15:09:46 -0700 [thread overview]
Message-ID: <20210830221000.179369-2-mcgrof@kernel.org> (raw)
In-Reply-To: <20210830221000.179369-1-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..6648bbc87c30 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_cleaup_disk(disk);
+ return err;
}
static int __init z2_init(void)
--
2.30.2
next prev parent reply other threads:[~2021-08-30 22:10 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 22:09 [PATCH 00/15] block: third batch of add_disk() error handling conversions Luis Chamberlain
2021-08-30 22:09 ` Luis Chamberlain [this message]
2021-09-01 13:41 ` [PATCH 01/15] z2ram: add error handling support for add_disk() Geert Uytterhoeven
2021-09-01 13:41 ` Geert Uytterhoeven
2021-09-01 19:41 ` Luis Chamberlain
2021-08-30 22:09 ` [PATCH 02/15] aoe: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 03/15] m68k/emu/nfblock: " Luis Chamberlain
2021-09-01 13:43 ` Geert Uytterhoeven
2021-09-01 13:43 ` Geert Uytterhoeven
2021-08-30 22:09 ` [PATCH 04/15] drbd: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 05/15] um/drivers/ubd_kern: " Luis Chamberlain
2021-09-01 15:24 ` Gabriel Krisman Bertazi
2021-08-30 22:09 ` [PATCH 06/15] xtensa/platforms/iss/simdisk: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 07/15] n64cart: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 08/15] pcd: move the identify buffer into pcd_identify Luis Chamberlain
2021-08-30 22:09 ` [PATCH 09/15] pcd: cleanup initialization Luis Chamberlain
2021-08-30 22:09 ` [PATCH 10/15] pf: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 11/15] pd: " Luis Chamberlain
2021-08-30 22:09 ` [PATCH 12/15] pcd: add error handling support for add_disk() Luis Chamberlain
2021-08-30 22:09 ` [PATCH 13/15] pcd: fix ordering of unregister_cdrom() Luis Chamberlain
2021-08-30 22:09 ` [PATCH 14/15] pcd: capture errors on cdrom_register() Luis Chamberlain
2021-08-30 22:10 ` [PATCH 15/15] pd: add error handling support for add_disk() Luis Chamberlain
2021-09-01 19:38 ` Luis Chamberlain
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