Re: [PATCH] usb: dwc3: imx8mp: request irq after initializing dwc3

From: Felipe Balbi
Date: Fri Aug 20 2021 - 06:07:07 EST



Nadezda Lutovinova <lutovinova@xxxxxxxxx> writes:

> If IRQ occurs between calling devm_request_threaded_irq() and
> initializing dwc3_imx->dwc3, then null pointer dereference occurs
> since dwc3_imx->dwc3 is used in dwc3_imx8mp_interrupt().
>
> The patch puts registration of the interrupt handler after
> initializing of neccesery data.
>
> Found by Linux Driver Verification project (linuxtesting.org).
>
> Signed-off-by: Nadezda Lutovinova <lutovinova@xxxxxxxxx>

Acked-by: Felipe Balbi <balbi@xxxxxxxxxx>

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balbi