linux-kernel - Re: [PATCH v2] drivers: atm: eni: Add pci_dma_mapping

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Message-Id: <20141121.150354.242152731394048793.davem@davemloft.net>
Date:	Fri, 21 Nov 2014 15:03:54 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	tinajohnson.1234@...il.com
Cc:	chas@....nrl.navy.mil, linux-atm-general@...ts.sourceforge.net,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	julia.lawall@...6.fr
Subject: Re: [PATCH v2] drivers: atm: eni: Add pci_dma_mapping_error() call

From: Tina Johnson <tinajohnson.1234@...il.com>
Date: Thu, 20 Nov 2014 15:54:54 +0530

> Added a pci_dma_mapping_error() call to check for mapping errors before
> further using the dma handle. In case of error, control goes to a new label
> where the incoming skb is freed. Unchecked dma handles were found using
> Coccinelle:
> 
> @rule1@
> expression e1;
> identifier x;
> @@
> 
> *x = pci_map_single(...);
>  ... when != pci_dma_mapping_error(e1,x)
> 
> Signed-off-by: Tina Johnson <tinajohnson.1234@...il.com>
> Acked-by: Julia Lawall <julia.lawall@...6.fr>
> ---
> v2: *Removed jump to trouble label
>     *Added a new label dma_map_error

Applied, thanks.
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