linux-kernel - [PATCH] exfat: avoid incorrectly releasing for root inode

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Message-ID: <87a6nz4s0o.wl-chenli@uniontech.com>
Date:   Wed, 09 Jun 2021 11:48:55 +0800
From:   Chen Li <chenli@...ontech.com>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sungjong Seo <sj1557.seo@...sung.com>,
        Namjae Jeon <namjae.jeon@...sung.com>
Subject: [PATCH] exfat: avoid incorrectly releasing for root inode


In d_make_root, when we fail to allocate dentry for root inode,
we will iput root inode and returned value is NULL in this function.

So we do not need to release this inode again at d_make_root's caller.

Signed-off-by: Chen Li <chenli@...ontech.com>
---
 fs/exfat/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index d38d17a77e76..5539ffc20d16 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -690,7 +690,7 @@ static int exfat_fill_super(struct super_block *sb, struct fs_context *fc)
 	if (!sb->s_root) {
 		exfat_err(sb, "failed to get the root dentry");
 		err = -ENOMEM;
-		goto put_inode;
+		goto free_table;
 	}
 
 	return 0;
-- 
2.31.1