[PATCH] xfs_db: check for valid inode data pointer before dereferencing

[Christoph Hellwig]

On Fri, Jun 25, 2010 at 08:24:43AM +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner at redhat.com>
> 
> When processing an inode, the code checks various flags to determine
> whether to output messages or not. When checking the CLI provided
> inode numbers to be verbose about, we fail to check if the inode
> data structre returned is valid or not before dereferencing it.
> Hence running xfs_check with the "serious errors only" flag, xfs_db
> will crash. Fix up the "should we output" logic to be safe.
> 
> Signed-off-by: Dave Chinner <dchinner at redhat.com>

Looks good,


Reviewed-by: Christoph Hellwig <hch at lst.de>