linux-kernel - Re: [PATCH] ext4: fix error handling in ext4_create

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Date:	Thu, 5 Jul 2007 00:17:25 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Borislav Petkov <bbpetkov@...oo.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ext4: fix error handling in ext4_create_journal

On Wed, Jul 04, 2007 at 09:30:24PM +0200, Borislav Petkov wrote:
> Fix error handling in ext4_create_journal according to kernel conventions.

> --- linux-2.6.22-rc7/fs/ext4/super.c.orig
> +++ linux-2.6.22-rc7/fs/ext4/super.c
> @@ -2150,6 +2150,7 @@
>  			       unsigned int journal_inum)
>  {
>  	journal_t *journal;
> +	int err;
>  
>  	if (sb->s_flags & MS_RDONLY) {
>  		printk(KERN_ERR "EXT4-fs: readonly filesystem when trying to "
> @@ -2157,13 +2158,15 @@
>  		return -EROFS;
>  	}
>  
> -	if (!(journal = ext4_get_journal(sb, journal_inum)))
> +	journal = ext4_get_journal(sb, journal_inum);
> +	if (!journal)
>  		return -EINVAL;

OK.

>  	printk(KERN_INFO "EXT4-fs: creating new journal on inode %u\n",
>  	       journal_inum);
>  
> -	if (jbd2_journal_create(journal)) {
> +	err = jbd2_journal_create(journal);
> +	if (err) {
>  		printk(KERN_ERR "EXT4-fs: error creating journal.\n");
>  		jbd2_journal_destroy(journal);
>  		return -EIO;

Original code is fine.

-
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