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List: kernel-janitors
Subject: [PATCH 1/2] null_blk: Fix an error handling path in null_add_dev()
From: Christophe JAILLET <christophe.jaillet () wanadoo ! fr>
Date: 2022-03-27 18:48:30
Message-ID: 876904b8334049a3be89d8bd278b04a421601baa.1648406899.git.christophe.jaillet () wanadoo ! fr
[Download RAW message or body]
In case of error, call to ida_simple_get() must be undone in the error
handling path.
Fixes: a0725ab0c753 ("Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/block/null_blk/main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 05b1120e6623..a330a118659d 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -2074,6 +2074,7 @@ static int null_add_dev(struct nullb_device *dev)
return 0;
out_cleanup_zone:
null_free_zoned_dev(dev);
+ ida_free(&nullb_indexes, nullb->index);
out_cleanup_disk:
blk_cleanup_disk(nullb->disk);
out_cleanup_tags:
--
2.32.0
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