Re: [PATCH] usb: dwc3: imx8mp: request irq after initializing dwc3
From: Fabio Estevam <festevam@gmail.com>
Date: 2021-08-19 20:15:53
Also in:
linux-usb, lkml
Hi Nadezda, On Thu, Aug 19, 2021 at 12:48 PM Nadezda Lutovinova [off-list ref] wrote:
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.
"necessary"
Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Nadezda Lutovinova <redacted>
Reviewed-by: Fabio Estevam <festevam@gmail.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel