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authorTimur Tabi <timur@freescale.com>2007-05-08 21:46:36 +0200
committerKumar Gala <galak@kernel.crashing.org>2007-05-10 06:01:43 +0200
commit4c35630ccda56ed494f6102d2e147fefe14b78d2 (patch)
tree4f04754fb0ec6978923b3c1e0318997e420f6551 /arch/ppc/syslib/ibm440gp_common.h
parent[POWERPC] 86xx: Enable the AC97 interface on 8641D board. (diff)
downloadlinux-4c35630ccda56ed494f6102d2e147fefe14b78d2.tar.xz
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[POWERPC] Change rheap functions to use ulongs instead of pointers
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: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/ppc/syslib/ibm440gp_common.h')
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