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From: Felipe Balbi <>
To: Nadezda Lutovinova <>
Cc: Greg Kroah-Hartman <>,
	Johan Hovold <>,,,,
Subject: Re: [PATCH v2] usb: gadget: mv_u3d: request_irq() after initializing UDC
Date: Wed, 18 Aug 2021 17:33:16 +0300	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Nadezda Lutovinova <> writes:

> If IRQ occurs between calling  request_irq() and  mv_u3d_eps_init(),
> then null pointer dereference occurs since u3d->eps[] wasn't
> initialized yet but used in mv_u3d_nuke().
> The patch puts registration of the interrupt handler after
> initializing of neccesery data.
> Found by Linux Driver Verification project (
> Fixes: 90fccb529d24 ("usb: gadget: Gadget directory cleanup - group UDC drivers")
> Signed-off-by: Nadezda Lutovinova <>

Thanks for updating so quickly:

Acked-by: Felipe Balbi <>


      reply	other threads:[~2021-08-18 14:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-18 13:01 [PATCH] usb: gadget: mv_u3d: Change functon call in mv_u3d_probe() Nadezda Lutovinova
2021-08-18 13:10 ` Felipe Balbi
2021-08-18 14:12   ` [PATCH v2] usb: gadget: mv_u3d: request_irq() after initializing UDC Nadezda Lutovinova
2021-08-18 14:33     ` Felipe Balbi [this message]

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