From: wu000273@umn.edu
To: kjlu@umn.edu
Cc: wu000273@umn.edu, "Matias Bjorling" <mb@lightnvm.io>,
"Matias Bjørling" <matias@cnexlabs.com>,
"Jens Axboe" <axboe@fb.com>, "Javier González" <jg@lightnvm.io>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] lightnvm: pblk: Fix reference count leak in pblk_sysfs_init.
Date: Wed, 27 May 2020 16:06:28 -0500 [thread overview]
Message-ID: <20200527210628.9477-1-wu000273@umn.edu> (raw)
From: Qiushi Wu <wu000273@umn.edu>
kobject_init_and_add() takes reference even when it fails.
Thus, when kobject_init_and_add() returns an error,
kobject_put() must be called to properly clean up the kobject.
Fixes: a4bd217b4326 ("lightnvm: physical block device (pblk) target")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
---
drivers/lightnvm/pblk-sysfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c
index 6387302b03f2..90f1433b19a2 100644
--- a/drivers/lightnvm/pblk-sysfs.c
+++ b/drivers/lightnvm/pblk-sysfs.c
@@ -711,6 +711,7 @@ int pblk_sysfs_init(struct gendisk *tdisk)
"%s", "pblk");
if (ret) {
pblk_err(pblk, "could not register\n");
+ kobject_put(&pblk->kobj);
return ret;
}
--
2.17.1
next reply other threads:[~2020-05-27 21:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 21:06 wu000273 [this message]
2020-05-28 6:28 ` [PATCH] lightnvm: pblk: Fix reference count leak in pblk_sysfs_init Javier González
2020-05-29 6:49 ` Matias Bjørling
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