Re: [PATCH 1/2] usb: chipidea: udc: improve error handling on ep_queue

From	Felipe Tonello <eu@felipetonello.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/2] usb: chipidea: udc: improve error handling on ep_queue
Date	2015-09-21 11:20 +0200
Message-ID	<qb5qq-2kt-19@gated-at.bofh.it> (permalink)
References	<qa7uh-Bk-3@gated-at.bofh.it> <qa7uh-Bk-5@gated-at.bofh.it> <qb5qq-2kt-21@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi Peter,

On Mon, Sep 21, 2015 at 7:29 AM, Peter Chen <peter.chen@freescale.com> wrote:
> On Fri, Sep 18, 2015 at 06:12:40PM +0100, eu@felipetonello.com wrote:
>> From: "Felipe F. Tonello" <eu@felipetonello.com>
>>
>> _ep_queue() didn't check for errors when using add_td_to_list()
>> which can fail if dma_pool_alloc fails, thus causing a kernel
>
> Would you find the root cause why dma_pool_alloc fails?

Partially. For some reason the udc_irq() is not been called after a
f_midi_transmit(). I am looking into that.

Felipe
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[PATCH 1/2] usb: chipidea: udc: improve error handling on ep_queue eu@felipetonello.com - 2015-09-18 19:20 +0200
  Re: [PATCH 1/2] usb: chipidea: udc: improve error handling on ep_queue Felipe Tonello <eu@felipetonello.com> - 2015-09-21 11:20 +0200

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