memblock: Fix memblock_is_region_reserved() to return a boolean
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 4 Aug 2010 04:17:17 +0000 (14:17 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 4 Aug 2010 04:17:17 +0000 (14:17 +1000)
commitf1c2c19c498e27de48bf0dc4221e6e31b1823169
tree61c1b8b9ab32cd76128e33186148597a8b8b39b1
parent3a09b1be53d23df780a0cd0e4087a05e2ca4a00c
memblock: Fix memblock_is_region_reserved() to return a boolean

All callers expect a boolean result which is true if the region
overlaps a reserved region. However, the implementation actually
returns -1 if there is no overlap, and a region index (0 based)
if there is.

Make it behave as callers (and common sense) expect.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
mm/memblock.c