commit 878708f290f6ed8b108d73fd6ab624cda6266a1e
author Russell King <rmk@dyn-67.arm.linux.org.uk> Thu Nov 06 18:04:23 2008 +0000
committer Russell King <rmk+kernel@arm.linux.org.uk> Thu Nov 06 18:04:23 2008 +0000
tree 249f991f231ef8532c7f44b592bbfe78194f7e2e
parent b1cce6b1b2785fd61454b47ceacb461815407662
parent c7cf72dcadbe39c2077b32460f86c9f8167be3be

Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/xscaleiop

arch/arm/mm/cache-xsc3l2.c

diff --git a/arch/arm/mm/cache-xsc3l2.c b/arch/arm/mm/cache-xsc3l2.c
index 10b1bae..464de89 100644
--- a/arch/arm/mm/cache-xsc3l2.c
+++ b/arch/arm/mm/cache-xsc3l2.c
@@ -98,7 +98,7 @@
 	/*
 	 * Clean and invalidate partial last cache line.
 	 */
-	if (end & (CACHE_LINE_SIZE - 1)) {
+	if (start < end && (end & (CACHE_LINE_SIZE - 1))) {
 		xsc3_l2_clean_pa(end & ~(CACHE_LINE_SIZE - 1));
 		xsc3_l2_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
 		end &= ~(CACHE_LINE_SIZE - 1);
@@ -107,7 +107,7 @@
 	/*
 	 * Invalidate all full cache lines between 'start' and 'end'.
 	 */
-	while (start != end) {
+	while (start < end) {
 		xsc3_l2_inv_pa(start);
 		start += CACHE_LINE_SIZE;
 	}