[ARM PATCH] 1912/1: Wrong cache aliasing bit check

Patch from Catalin Marinas

arch/arm/mm/mmap.c: arch_get_unamapped_area() checks bit 9 in the cache type register for possible cache aliasing problems. Bit 11 should be checked instead.

arch/arm/mm/mmap.c

@@ -40,7 +40,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	 */
 	cache_type = read_cpuid(CPUID_CACHETYPE);
 	if (cache_type != read_cpuid(CPUID_ID)) {
-		aliasing = (cache_type | cache_type >> 12) & (1 << 9);
+		aliasing = (cache_type | cache_type >> 12) & (1 << 11);
 		if (aliasing)
 			do_align = filp || flags & MAP_SHARED;
 	}