diff mbox

[3/4] drivers/media/video/hexium_gemini.c: delete useless initialization

Message ID 1312453774-23333-4-git-send-email-julia@diku.dk (mailing list archive)
State Accepted
Headers show

Commit Message

Julia Lawall Aug. 4, 2011, 10:29 a.m. UTC 
From: Julia Lawall <julia@diku.dk>

Delete nontrivial initialization that is immediately overwritten by the
result of an allocation function.

The semantic match that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
identifier i;
expression e;
@@

(
T i = \(0\|NULL\|ERR_PTR(...)\);
|
-T i = e;
+T i;
)
... when != i
i = \(kzalloc\|kcalloc\|kmalloc\)(...);

// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
 drivers/media/video/hexium_gemini.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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Comments

Jean Delvare Aug. 16, 2011, 11:55 a.m. UTC | #1 
Hi Julia,

On Thu,  4 Aug 2011 12:29:33 +0200, Julia Lawall wrote:
> From: Julia Lawall <julia@diku.dk>
> 
> Delete nontrivial initialization that is immediately overwritten by the
> result of an allocation function.
> (...)
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
>  drivers/media/video/hexium_gemini.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff -u -p a/drivers/media/video/hexium_gemini.c b/drivers/media/video/hexium_gemini.c
> --- a/drivers/media/video/hexium_gemini.c
> +++ b/drivers/media/video/hexium_gemini.c
> @@ -352,7 +352,7 @@ static struct saa7146_ext_vv vv_data;
>  /* this function only gets called when the probing was successful */
>  static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
>  {
> -	struct hexium *hexium = (struct hexium *) dev->ext_priv;
> +	struct hexium *hexium;
>  	int ret;
>  
>  	DEB_EE((".\n"));
> 

Looks correct.

Acked-by: Jean Delvare <khali@linux-fr.org>
diff mbox

Patch

diff -u -p a/drivers/media/video/hexium_gemini.c b/drivers/media/video/hexium_gemini.c
--- a/drivers/media/video/hexium_gemini.c
+++ b/drivers/media/video/hexium_gemini.c
@@ -352,7 +352,7 @@  static struct saa7146_ext_vv vv_data;
 /* this function only gets called when the probing was successful */
 static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 {
-	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+	struct hexium *hexium;
 	int ret;
 
 	DEB_EE((".\n"));