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

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Message-ID: <CABNMmsD_V3ZNzWeJr6pVQ+Q=huR63Mw-dpsJEsMLkujBsgjrSw@mail.gmail.com>
Date:	Mon, 1 Aug 2016 06:19:43 +0300
From:	Giedrius Statkevičius 
	<giedrius.statkevicius@...il.com>
To:	Nadim almas <nadim.902@...il.com>
Cc:	labbott@...hat.com, devel@...verdev.osuosl.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Staging: android: ion: ion.c: Compression of lines for

On Sun, Jul 31, 2016 at 6:44 PM, Nadim almas <nadim.902@...il.com> wrote:
> This patch compresses two lines in to a single line in file
> ion.c
> if immediate return statement is found.It also removes variable
> ret as it is no longer needed.
>
> ne 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
> index 52345df..271395b 100644
> --- a/drivers/staging/android/ion/ion.c
> +++ b/drivers/staging/android/ion/ion.c
> @@ -391,9 +391,7 @@ static int ion_handle_put_nolock(struct ion_handle *handle)
>  {
> -       int ret;
>
> -       ret = kref_put(&handle->ref, ion_handle_destroy);
> -
> -       return ret;
> +       return kref_put(&handle->ref, ion_handle_destroy);
>  }
>
>  static int ion_handle_put(struct ion_handle *handle)
> @@ -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);
>  }

Try to actually compile before sending your patch.