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0ec364c0c9
Since commit a166563e7ec3 ("arm64: mm: support large block mapping when
rodata=full"), __change_memory_common has more chance to fail due to
memory allocation failure when splitting page table. So check the return
value of set_memory_rox(), then bail out if it fails otherwise we may have
RW memory mapping for kprobes insn page.
Fixes: 195a1b7d8388 ("arm64: kprobes: call set_memory_rox() for kprobe page")
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
Signed-off-by: Will Deacon <will@kernel.org>