From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Wed, 19 Oct 2005 10:57:14 +0000 (+0900)
Subject: Fix zero length sys_cacheflush
X-Git-Tag: v2.6.15-rc1~731^2~1^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=750ccf687ff9adbf2a16066a3a2757d0f761384c;p=pandora-kernel.git

Fix zero length sys_cacheflush

Cacheflush(0, 0, 0) was crashing the system.  This is because
flush_icache_range(start, end) tries to flushing whole address space
(0 - ~0UL) if both start and end are zero.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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