[PATCH] arm64: pageattr: Correctly adjust unaligned start addresses

[lauraa@codeaurora.org (Laura Abbott)]

The start address needs to be actually updated after it
is detected to be unaligned. Adjust it and the end address
properly.

Reported-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
---
 arch/arm64/mm/pageattr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index 75e744e..bb0ea94 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -46,7 +46,8 @@ static int change_memory_common(unsigned long addr, int numpages,
 	struct page_change_data data;
 
 	if (!IS_ALIGNED(addr, PAGE_SIZE)) {
-		addr &= PAGE_MASK;
+		start &= PAGE_MASK;
+		end = start + size;
 		WARN_ON_ONCE(1);
 	}
 
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