[PATCH] phy: qcom-qmp-combo: fix NULL-deref on runtime resume

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Wed Oct 26 12:42:44 PDT 2022


On 26/10/2022 19:21, Johan Hovold wrote:
> Commit fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate
> PCS_USB region") started treating the PCS_USB registers as potentially
> separate from the PCS registers but used the wrong base when no PCS_USB
> offset has been provided.
> 
> Fix the PCS_USB base used at runtime resume to prevent dereferencing a
> NULL pointer on platforms that do not provide a PCS_USB offset (e.g.
> SC7180).
> 
> Fixes: fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate PCS_USB region")
> Cc: stable at vger.kernel.org	# 5.20
> Signed-off-by: Johan Hovold <johan+linaro at kernel.org>
> ---
>   drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

-- 
With best wishes
Dmitry




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