From: Luis Chamberlain <mcgrof@kernel.org> To: axboe@kernel.dk, hch@lst.de, penguin-kernel@i-love.sakura.ne.jp, dan.j.williams@intel.com, vishal.l.verma@intel.com, dave.jiang@intel.com, ira.weiny@intel.com, richard@nod.at, miquel.raynal@bootlin.com, vigneshr@ti.com, efremov@linux.com, song@kernel.org, martin.petersen@oracle.com, hare@suse.de, jack@suse.cz, ming.lei@redhat.com, tj@kernel.org, mcgrof@kernel.org Cc: linux-mtd@lists.infradead.org, linux-scsi@vger.kernel.org, linux-raid@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 13/13] block: add __must_check for *add_disk*() callers Date: Wed, 3 Nov 2021 05:21:57 -0700 [thread overview] Message-ID: <20211103122157.1215783-14-mcgrof@kernel.org> (raw) In-Reply-To: <20211103122157.1215783-1-mcgrof@kernel.org> Now that we have done a spring cleaning on all drivers and added error checking / handling, let's keep it that way and ensure no new drivers fail to stick with it. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- block/genhd.c | 6 +++--- include/linux/genhd.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 7b56767e9e32..be4775c13760 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -397,8 +397,8 @@ static void disk_scan_partitions(struct gendisk *disk) * This function registers the partitioning information in @disk * with the kernel. */ -int device_add_disk(struct device *parent, struct gendisk *disk, - const struct attribute_group **groups) +int __must_check device_add_disk(struct device *parent, struct gendisk *disk, + const struct attribute_group **groups) { struct device *ddev = disk_to_dev(disk); @@ -543,7 +543,7 @@ int device_add_disk(struct device *parent, struct gendisk *disk, out_free_ext_minor: if (disk->major == BLOCK_EXT_MAJOR) blk_free_ext_minor(disk->first_minor); - return WARN_ON_ONCE(ret); /* keep until all callers handle errors */ + return ret; } EXPORT_SYMBOL(device_add_disk); diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 016623245725..526ec4aaf85c 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -205,9 +205,9 @@ static inline dev_t disk_devt(struct gendisk *disk) void disk_uevent(struct gendisk *disk, enum kobject_action action); /* block/genhd.c */ -int device_add_disk(struct device *parent, struct gendisk *disk, - const struct attribute_group **groups); -static inline int add_disk(struct gendisk *disk) +int __must_check device_add_disk(struct device *parent, struct gendisk *disk, + const struct attribute_group **groups); +static inline int __must_check add_disk(struct gendisk *disk) { return device_add_disk(NULL, disk, NULL); } -- 2.33.0
WARNING: multiple messages have this Message-ID (diff)
From: Luis Chamberlain <mcgrof@kernel.org> To: axboe@kernel.dk, hch@lst.de, penguin-kernel@i-love.sakura.ne.jp, dan.j.williams@intel.com, vishal.l.verma@intel.com, dave.jiang@intel.com, ira.weiny@intel.com, richard@nod.at, miquel.raynal@bootlin.com, vigneshr@ti.com, efremov@linux.com, song@kernel.org, martin.petersen@oracle.com, hare@suse.de, jack@suse.cz, ming.lei@redhat.com, tj@kernel.org, mcgrof@kernel.org Cc: linux-mtd@lists.infradead.org, linux-scsi@vger.kernel.org, linux-raid@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 13/13] block: add __must_check for *add_disk*() callers Date: Wed, 3 Nov 2021 05:21:57 -0700 [thread overview] Message-ID: <20211103122157.1215783-14-mcgrof@kernel.org> (raw) In-Reply-To: <20211103122157.1215783-1-mcgrof@kernel.org> Now that we have done a spring cleaning on all drivers and added error checking / handling, let's keep it that way and ensure no new drivers fail to stick with it. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- block/genhd.c | 6 +++--- include/linux/genhd.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 7b56767e9e32..be4775c13760 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -397,8 +397,8 @@ static void disk_scan_partitions(struct gendisk *disk) * This function registers the partitioning information in @disk * with the kernel. */ -int device_add_disk(struct device *parent, struct gendisk *disk, - const struct attribute_group **groups) +int __must_check device_add_disk(struct device *parent, struct gendisk *disk, + const struct attribute_group **groups) { struct device *ddev = disk_to_dev(disk); @@ -543,7 +543,7 @@ int device_add_disk(struct device *parent, struct gendisk *disk, out_free_ext_minor: if (disk->major == BLOCK_EXT_MAJOR) blk_free_ext_minor(disk->first_minor); - return WARN_ON_ONCE(ret); /* keep until all callers handle errors */ + return ret; } EXPORT_SYMBOL(device_add_disk); diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 016623245725..526ec4aaf85c 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -205,9 +205,9 @@ static inline dev_t disk_devt(struct gendisk *disk) void disk_uevent(struct gendisk *disk, enum kobject_action action); /* block/genhd.c */ -int device_add_disk(struct device *parent, struct gendisk *disk, - const struct attribute_group **groups); -static inline int add_disk(struct gendisk *disk) +int __must_check device_add_disk(struct device *parent, struct gendisk *disk, + const struct attribute_group **groups); +static inline int __must_check add_disk(struct gendisk *disk) { return device_add_disk(NULL, disk, NULL); } -- 2.33.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2021-11-03 12:22 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-03 12:21 [PATCH v2 00/13] block: add_disk() error handling stragglers Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 12:21 ` [PATCH v2 01/13] nvdimm/btt: do not call del_gendisk() if not needed Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:02 ` Christoph Hellwig 2021-11-03 16:02 ` Christoph Hellwig 2021-11-03 16:58 ` Luis Chamberlain 2021-11-03 16:58 ` Luis Chamberlain 2021-11-03 12:21 ` [PATCH v2 02/13] nvdimm/btt: use goto error labels on btt_blk_init() Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:02 ` Christoph Hellwig 2021-11-03 16:02 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 03/13] nvdimm/btt: add error handling support for add_disk() Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:04 ` Christoph Hellwig 2021-11-03 16:04 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 04/13] nvdimm/blk: avoid calling del_gendisk() on early failures Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:05 ` Christoph Hellwig 2021-11-03 16:05 ` Christoph Hellwig 2021-11-03 16:47 ` Luis Chamberlain 2021-11-03 16:47 ` Luis Chamberlain 2021-11-03 12:21 ` [PATCH v2 05/13] nvdimm/blk: add error handling support for add_disk() Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 06/13] nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 07/13] nvdimm/pmem: use add_disk() error handling Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 16:06 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 08/13] z2ram: add error handling support for add_disk() Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 09/13] block/sunvdc: " Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 10/13] mtd/ubi/block: " Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 16:07 ` Christoph Hellwig 2021-11-03 12:21 ` [PATCH v2 11/13] ataflop: remove ataflop_probe_lock mutex Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 12:21 ` [PATCH v2 12/13] block: make __register_blkdev() return an error Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain 2021-11-03 16:09 ` Christoph Hellwig 2021-11-03 16:09 ` Christoph Hellwig 2021-11-03 16:44 ` Luis Chamberlain 2021-11-03 16:44 ` Luis Chamberlain 2021-11-03 17:00 ` Christoph Hellwig 2021-11-03 17:00 ` Christoph Hellwig 2021-11-03 17:03 ` Luis Chamberlain 2021-11-03 17:03 ` Luis Chamberlain 2021-11-03 12:21 ` Luis Chamberlain [this message] 2021-11-03 12:21 ` [PATCH v2 13/13] block: add __must_check for *add_disk*() callers Luis Chamberlain 2021-11-03 17:41 ` [PATCH v2 00/13] block: add_disk() error handling stragglers Luis Chamberlain 2021-11-03 17:41 ` Luis Chamberlain
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