• Timur Tabi's avatar
    [POWERPC] Change rheap functions to use ulongs instead of pointers · 4c35630c
    Timur Tabi authored
    The rheap allocation functions return a pointer, but the actual value is based
    on how the heap was initialized, and so it can be anything, e.g. an offset
    into a buffer.  A ulong is a better representation of the value returned by
    the allocation functions.
    
    This patch changes all of the relevant rheap functions to use a unsigned long
    integers instead of a pointer.  In case of an error, the value returned is
    a negative error code that has been cast to an unsigned long.  The caller can
    use the IS_ERR_VALUE() macro to check for this.
    
    All code which calls the rheap functions is updated accordingly.  Macros
    IS_MURAM_ERR() and IS_DPERR(), have been deleted in favor of IS_ERR_VALUE().
    
    Also added error checking to rh_attach_region().
    Signed-off-by: default avatarTimur Tabi <timur@freescale.com>
    Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
    4c35630c
rheap.h 2.43 KB