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Date:   Fri, 3 Jan 2020 09:01:14 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-fscrypt@...r.kernel.org
Cc:     linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        linux-mtd@...ts.infradead.org
Subject: Re: [PATCH] fscrypt: don't check for ENOKEY from
 fscrypt_get_encryption_info()

On Mon, Dec 09, 2019 at 01:23:48PM -0800, Eric Biggers wrote:
> From: Eric Biggers <ebiggers@...gle.com>
> 
> fscrypt_get_encryption_info() returns 0 if the encryption key is
> unavailable; it never returns ENOKEY.  So remove checks for ENOKEY.
> 
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>
> ---
>  fs/ext4/dir.c  | 2 +-
>  fs/f2fs/dir.c  | 2 +-
>  fs/ubifs/dir.c | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
> index 9fdd2b269d617..4c9d3ff394a5d 100644
> --- a/fs/ext4/dir.c
> +++ b/fs/ext4/dir.c
> @@ -116,7 +116,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
>  
>  	if (IS_ENCRYPTED(inode)) {
>  		err = fscrypt_get_encryption_info(inode);
> -		if (err && err != -ENOKEY)
> +		if (err)
>  			return err;
>  	}
>  
> diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
> index c967cacf979ef..d9ad842945df5 100644
> --- a/fs/f2fs/dir.c
> +++ b/fs/f2fs/dir.c
> @@ -987,7 +987,7 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
>  
>  	if (IS_ENCRYPTED(inode)) {
>  		err = fscrypt_get_encryption_info(inode);
> -		if (err && err != -ENOKEY)
> +		if (err)
>  			goto out;
>  
>  		err = fscrypt_fname_alloc_buffer(inode, F2FS_NAME_LEN, &fstr);
> diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
> index 0b98e3c8b461d..acc4f942d25b6 100644
> --- a/fs/ubifs/dir.c
> +++ b/fs/ubifs/dir.c
> @@ -512,7 +512,7 @@ static int ubifs_readdir(struct file *file, struct dir_context *ctx)
>  
>  	if (encrypted) {
>  		err = fscrypt_get_encryption_info(dir);
> -		if (err && err != -ENOKEY)
> +		if (err)
>  			return err;
>  
>  		err = fscrypt_fname_alloc_buffer(dir, UBIFS_MAX_NLEN, &fstr);
> -- 
> 2.24.0.393.g34dc348eaf-goog
> 

Applied to fscrypt.git#master for 5.6.

- Eric

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