Bjorn Andersson
72f039db49
phy: qcom-qmp: Ensure register indirection arrays initialized ...
It's possible that struct qmp_phy_cfg->regs references an array that is
smaller than the possible register lookups that is going to be
performed, with the resulting out-of-bounds read resulting in undefined
behavior.
One such example is when during qcom_qmp_phy_com_init() performs a
qphy_setbits() on entry QPHY_PCS_POWER_DOWN_CONTROL (i.e. 17) with
msm8996_ufsphy_regs_layout only being 12 entries long.
Solve this by inflating all "regs_layout" arrays to ensure that any
remaining entries are zero-initialized, as expected by the code.
Fixes: e4d8b05ad5f9 ("phy: qcom-qmp: Use proper PWRDOWN offset for sm8150 USB")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200515013643.2081941-1-bjorn.andersson@linaro.org
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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72f039db49