There is a typo here that got copy and pasted to several probe
functions.  kzalloc() returns NULL on allocation failures and not an
ERR_PTR.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Acked-by: NDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>