netdev - Re: [PATCH lora-next v2 1/8] net: lora: add methods for devm registration

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Date:   Thu, 9 Aug 2018 21:18:02 +0200
From:   Andreas Färber <afaerber@...e.de>
To:     Ben Whitten <ben.whitten@...il.com>
Cc:     starnight@...cu.edu.tw, hasnain.virk@....com,
        netdev@...r.kernel.org, liuxuenetmail@...il.com, shess@...sware.de,
        Ben Whitten <ben.whitten@...rdtech.com>
Subject: Re: [PATCH lora-next v2 1/8] net: lora: add methods for devm
 registration

Am 09.08.2018 um 14:33 schrieb Ben Whitten:
> Follow the devm model so that we can avoid lengthy unwind code.
> 
> Signed-off-by: Ben Whitten <ben.whitten@...rdtech.com>
> ---
>  drivers/net/lora/dev.c   | 28 ++++++++++++++++++++++++++++
>  include/linux/lora/dev.h |  1 +
>  2 files changed, 29 insertions(+)
> 
> diff --git a/drivers/net/lora/dev.c b/drivers/net/lora/dev.c
> index 8c01106..e32a870 100644
> --- a/drivers/net/lora/dev.c
> +++ b/drivers/net/lora/dev.c
> @@ -84,6 +84,34 @@ void free_loradev(struct net_device *dev)
>  }
>  EXPORT_SYMBOL_GPL(free_loradev);
>  
> +static void devm_free_loradev(struct device *dev, void *res)
> +{
> +	struct net_device *net = (*(struct net_device **)res);
> +	free_loradev(net);

This is what I meant with adding a variable:

diff --git a/drivers/net/lora/dev.c b/drivers/net/lora/dev.c
index c1b196cdf835..0d4823de8c06 100644
--- a/drivers/net/lora/dev.c
+++ b/drivers/net/lora/dev.c
@@ -87,8 +87,9 @@ EXPORT_SYMBOL_GPL(free_loradev);

 static void devm_free_loradev(struct device *dev, void *res)
 {
-       struct net_device *net = (*(struct net_device **)res);
-       free_loradev(net);
+       struct net_device **net = res;
+
+       free_loradev(*net);
 }

 struct net_device *devm_alloc_loradev(struct device *dev, size_t priv)

Applying.

Thanks,
Andreas

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