Re: [PATCH 1/3] fs/ntfs3: Fix memory leak if fill_super failed

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On Mon, Sep 27, 2021 at 06:47:14PM +0300, Konstantin Komarov wrote:
> Restore fc->s_fs_info to free memory allocated in ntfs_init_fs_context.
> 
> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
> ---
>  fs/ntfs3/super.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
> index 800897777eb0..7099d9b1f3aa 100644
> --- a/fs/ntfs3/super.c
> +++ b/fs/ntfs3/super.c
> @@ -1308,6 +1308,9 @@ int ntfs_discard(struct ntfs_sb_info *sbi, CLST lcn, CLST len)
>  	if (err == -EOPNOTSUPP)
>  		sbi->flags |= NTFS_FLAGS_NODISCARD;
>  
> +	/* Restore fc->s_fs_info to free memory allocated in ntfs_init_fs_context. */
> +	fc->s_fs_info = sbi;

Won't build and I do not understand what this does in ntfs_discard.

> +
>  	return err;
>  }
>  
> -- 
> 2.33.0
> 
> 




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