linux-kernel - [PATCH 04/10] ps3vram: add error handling support for add

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Message-Id: <20210901210028.1750956-5-mcgrof@kernel.org>
Date:   Wed,  1 Sep 2021 14:00:22 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     axboe@...nel.dk, bhelgaas@...gle.com, liushixin2@...wei.com,
        thunder.leizhen@...wei.com, lee.jones@...aro.org,
        geoff@...radead.org, mpe@...erman.id.au, benh@...nel.crashing.org,
        paulus@...ba.org, jim@...n.com, haris.iqbal@...os.com,
        jinpu.wang@...os.com, josh.h.morris@...ibm.com,
        pjk1939@...ux.ibm.com, tim@...erelk.net, richard@....at,
        miquel.raynal@...tlin.com, vigneshr@...com
Cc:     linux-mtd@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH 04/10] ps3vram: add error handling support for add_disk()

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@...nel.org>
---
 drivers/block/ps3vram.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index c7b19e128b03..af2a0d09c598 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -755,9 +755,14 @@ static int ps3vram_probe(struct ps3_system_bus_device *dev)
 	dev_info(&dev->core, "%s: Using %llu MiB of GPU memory\n",
 		 gendisk->disk_name, get_capacity(gendisk) >> 11);
 
-	device_add_disk(&dev->core, gendisk, NULL);
+	error = device_add_disk(&dev->core, gendisk, NULL);
+	if (error)
+		goto out_cleanup_disk;
+
 	return 0;
 
+out_cleanup_disk:
+	blk_cleanup_disk(gendisk);
 out_cache_cleanup:
 	remove_proc_entry(DEVICE_NAME, NULL);
 	ps3vram_cache_cleanup(dev);
-- 
2.30.2