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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 07/15] n64cart: add error handling support for add_disk()
Date: Mon, 30 Aug 2021 15:09:52 -0700	[thread overview]
Message-ID: <20210830221000.179369-8-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.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/block/n64cart.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/block/n64cart.c b/drivers/block/n64cart.c
index c84be0028f63..1ba9137bdf30 100644
--- a/drivers/block/n64cart.c
+++ b/drivers/block/n64cart.c
@@ -117,6 +117,7 @@ static const struct block_device_operations n64cart_fops = {
 static int __init n64cart_probe(struct platform_device *pdev)
 {
 	struct gendisk *disk;
+	int err = -ENOMEM;
 
 	if (!start || !size) {
 		pr_err("start or size not specified\n");
@@ -134,7 +135,7 @@ static int __init n64cart_probe(struct platform_device *pdev)
 
 	disk = blk_alloc_disk(NUMA_NO_NODE);
 	if (!disk)
-		return -ENOMEM;
+		goto out;
 
 	disk->first_minor = 0;
 	disk->flags = GENHD_FL_NO_PART_SCAN;
@@ -149,11 +150,18 @@ static int __init n64cart_probe(struct platform_device *pdev)
 	blk_queue_physical_block_size(disk->queue, 4096);
 	blk_queue_logical_block_size(disk->queue, 4096);
 
-	add_disk(disk);
+	err = add_disk(disk);
+	if (err)
+		goto out_cleanup_disk;
 
 	pr_info("n64cart: %u kb disk\n", size / 1024);
 
 	return 0;
+
+out_cleanup_disk:
+	blk_cleanup_disk(disk);
+out:
+	return err;
 }
 
 static struct platform_driver n64cart_driver = {
-- 
2.30.2


  parent reply	other threads:[~2021-08-30 22:10 UTC|newest]

Thread overview: 21+ 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 ` [PATCH 01/15] z2ram: add error handling support for add_disk() Luis Chamberlain
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
2021-08-30 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 ` Luis Chamberlain [this message]
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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