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From:   Navid Emamdoost <navid.emamdoost@gmail.com>
Cc:     emamd001@umn.edu, smccaman@umn.edu, kjlu@umn.edu,
        Navid Emamdoost <navid.emamdoost@gmail.com>,
        Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
        David Sterba <dsterba@suse.com>, linux-btrfs@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] btrfs: prevent memory leak
Date:   Mon, 23 Sep 2019 17:34:36 -0500
Message-Id: <20190923223437.11086-1-navid.emamdoost@gmail.com>
To:     unlisted-recipients:; (no To-header on input)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

In btrfsic_mount if btrfsic_dev_state_alloc fails the allocated state
will be leaked. It needs to be released on error handling path.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
 fs/btrfs/check-integrity.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 0b52ab4cb964..8a77b0cb2db3 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2941,6 +2941,7 @@ int btrfsic_mount(struct btrfs_fs_info *fs_info,
 		if (NULL == ds) {
 			pr_info("btrfs check-integrity: kmalloc() failed!\n");
 			mutex_unlock(&btrfsic_mutex);
+			kvfree(state);
 			return -ENOMEM;
 		}
 		ds->bdev = device->bdev;
-- 
2.17.1