Re: [PATCH] dmaengine: ti: omap-dma: Configure LCH_TYPE for OMAP1

From: Aaro Koskinen
Date: Sat Nov 24 2018 - 14:07:19 EST


Hello,

On Sat, Nov 24, 2018 at 05:48:23PM +0000, Russell King - ARM Linux wrote:
> Hmm, there's more questionable stuff in this driver, and the gadget
> layer.

[...]

> So, whatever way I look at this, the code in the removal path both
> in omap_udc and the gadget removal code higher up looks very wrong
> and broken to me.

Yes, week ago I saw omap_udc crashing on both probe failure and
module removal and sent some fixes for the most obvious failures (see
https://marc.info/?l=linux-usb&m=154258778316932&w=2).

Is there any good driver that uses usb_add_gadget_udc_release() correctly?
Looking at fsl_qe_udc.c and fsl_udc_core.c they should also crash if
usb_add_gadget_udc_release() fails.

A.