At the top this file, we have:
   #define pr_fmt(fmt) "chcr:" fmt

So there is no need to repeat "chcr : " in some error message when the
pr_xxx macro is used.
This would lead to log "chcr:chcr : blabla"
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>