linux-kernel - Re: [PATCH 01/32] dmaengine: ste_dma40: Assign memcpy channels in the driver

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Message-ID: <CACRpkdaMS8RBi7aWyBRRZbf7OpK82C3-79tEaq+A-QU5zbVyxQ@mail.gmail.com>
Date:	Thu, 25 Apr 2013 11:20:18 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rabin Vincent <rabin@....in>,
	Linus WALLEIJ <linus.walleij@...ricsson.com>,
	Arnd Bergmann <arnd@...db.de>,
	Vinod Koul <vinod.koul@...el.com>,
	Per Forlin <per.forlin@...ricsson.com>,
	Dan Williams <djbw@...com>
Subject: Re: [PATCH 01/32] dmaengine: ste_dma40: Assign memcpy channels in the driver

On Thu, Apr 18, 2013 at 12:11 PM, Lee Jones <lee.jones@...aro.org> wrote:

> The channels reserved for memcpy are the same for all currently
> supported platforms. With this in mind, we can ease the platform
> data passing requirement by moving these assignments out from
> platform code and place them directly into the driver.
>
> Cc: Vinod Koul <vinod.koul@...el.com>
> Cc: Dan Williams <djbw@...com>
> Cc: Per Forlin <per.forlin@...ricsson.com>
> Cc: Rabin Vincent <rabin@....in>
> Acked-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>

(...)
> -       if (num_log_chans + plat_data->memcpy_len) {
> +       if (num_log_chans + ARRAY_SIZE(dma40_memcpy_channels)) {
>                 /*
>                  * The max number of logical channels are event lines for all
>                  * src devices and dst devices

So as mentioned in review of another patch there is a kzalloc
right below here where you forget to add + ARRAY_SIZE(dma40_memcpy_channels)
please fix this...

Yours,
Linus Walleij
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