linux-kernel - Re: [PATCH 33/33] Staging: android: ion: ion.c: Compression of lines for

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Message-ID: <1469876299.3998.104.camel@perches.com>
Date:	Sat, 30 Jul 2016 03:58:19 -0700
From:	Joe Perches <joe@...ches.com>
To:	Nadim almas <nadim.902@...il.com>, labbott@...hat.com
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...verdev.osuosl.org
Subject: Re: [PATCH 33/33] Staging: android: ion: ion.c: Compression of
 lines for

On Sat, 2016-07-30 at 02:54 -0700, Nadim almas wrote:
> This patch compresses two lines in to a single line in file rtw_android.c
> if immediate return statement is found. It also removes variable 
> bytes_written as it is no longer needed.
> 
> It is done using script Coccinelle. And coccinelle uses following semantic
> patch for this compression function:
> 
> 
> @@
> expression e, ret;
> @@
> 
> -ret =
> +return
>      e;
> -return ret;
> 
> Signed-off-by: Nadim Almas <nadim.902@...il.com>
> ---
>  drivers/staging/android/ion/ion.c          | 8 +++-----
>  1 files changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
[]
> @@ -597,8 +595,8 @@ int ion_phys(struct ion_client *client, struct ion_handle *handle,
>  		return -ENODEV;
>  	}
>  	mutex_unlock(&client->lock);
> -	ret = buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
> -	return ret;
> +	
> +        return buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
>  }
>  EXPORT_SYMBOL(ion_phys);

How unfortunate you didn't heed the advice given..
I'll bet you didn't compile this.