This removes the deprecacted marco, PTR_RET and changes the
functions that use this marco in their return statement to
instead use the non deprecacted function, PTR_ERR_OR_ZERO
for the file devices.c.
Signed-off-by: NNicholas Krause <xerofoify@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>