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由 Naveen N. Rao 提交于
If arch_validate_hwbkpt_settings() fails, bp->ctx won't be valid and the kernel panics. Add a check to fix this. Reported-by: NEdjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Signed-off-by: NNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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