Commit c924aff8 authored Dec 17, 2006 by Russell King Committed by Russell King Dec 17, 2006

[ARM] Fix BUG()s in ioremap() code



We need to ensure that the area size is page aligned so that
remap_area_pte() doesn't increment the address past the end of
the desired area.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 5a059f1a

arch/arm/mm/ioremap.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -292,6 +292,8 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
		if (pfn >= 0x100000 && (__pfn_to_phys(pfn) & ~SUPERSECTION_MASK))
		return NULL;

		size = PAGE_ALIGN(size);

		area = get_vm_area(size, VM_IOREMAP);
		if (!area)
		return NULL;