arm64: fix the flush_icache_range arguments in machine_kexec

Commit d51c214541c5154dda3037289ee895ea3ded5ebd upstream.

The second argument is the end "pointer", not the length.

Fixes: d28f6df1305a ("arm64/kexec: Add core kexec support")
Cc: <stable@vger.kernel.org> # 4.8.x-
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 11121f608eb52718a3f490bb0eddec83486493ad..f7e593965c1d747efe425d10af785f3824ef9a6e 100644 (file)
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -184,7 +184,8 @@ void machine_kexec(struct kimage *kimage)
        /* Flush the reboot_code_buffer in preparation for its execution. */
        __flush_dcache_area(reboot_code_buffer, arm64_relocate_new_kernel_size);
        flush_icache_range((uintptr_t)reboot_code_buffer,
-               arm64_relocate_new_kernel_size);
+                          (uintptr_t)reboot_code_buffer +
+                          arm64_relocate_new_kernel_size);
 
        /* Flush the kimage list and its buffers. */
        kexec_list_flush(kimage);