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由 Pawel Moll 提交于
clk_change_rate() is accessing parent's rate without checking if the parent exists at all. In case of root clocks this will cause NULL pointer dereference. This patch follows what clk_calc_new_rates() does in such situation. Signed-off-by: NPawel Moll <pawel.moll@arm.com> Signed-off-by: NMike Turquette <mturquette@linaro.org> Cc: stable@kernel.org
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