On Mon, Sep 11, 2017 at 04:15:28PM +0100, Colin King wrote:
> From: Colin Ian King <[email protected]>
> 
> There are checks on fs_info in __btrfs_panic to avoid dereferencing a
> null fs_info, however, there is a call to btrfs_crit that may also
> dereference a null fs_info. Fix this by adding a check to see if fs_info
> is null and only print the s_id if fs_info is non-null.
> 
> Detected by CoverityScan CID#401973 ("Dereference after null check")
> 
> Fixes: efe120a067c8 ("Btrfs: convert printk to btrfs_ and fix BTRFS prefix")
> Signed-off-by: Colin Ian King <[email protected]>

Reviewed-by: David Sterba <[email protected]>

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