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* [patch] usb/uvc_v4l2: cleanup test for end of loop
@ 2010-08-12  7:59 Dan Carpenter
  2010-08-12  8:02 ` Laurent Pinchart
  0 siblings, 1 reply; 2+ messages in thread
From: Dan Carpenter @ 2010-08-12  7:59 UTC (permalink / raw)
  To: kernel-janitors

We're trying to test for the the end of the loop here.  "format" is
never NULL.  We don't know what "format->fcc" is because we're past the
end of the loop and I think "fmt->fmt.pix.pixelformat" comes from the
user so we don't know what that is either.  It works, but it's cleaner
to just test to see if (i = ARRAY_SIZE(uvc_formats).

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c
index 2dcffda..5e807f0 100644
--- a/drivers/usb/gadget/uvc_v4l2.c
+++ b/drivers/usb/gadget/uvc_v4l2.c
@@ -94,7 +94,7 @@ uvc_v4l2_set_format(struct uvc_video *video, struct v4l2_format *fmt)
 			break;
 	}
 
-	if (format = NULL || format->fcc != fmt->fmt.pix.pixelformat) {
+	if (i = ARRAY_SIZE(uvc_formats)) {
 		printk(KERN_INFO "Unsupported format 0x%08x.\n",
 			fmt->fmt.pix.pixelformat);
 		return -EINVAL;

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [patch] usb/uvc_v4l2: cleanup test for end of loop
  2010-08-12  7:59 [patch] usb/uvc_v4l2: cleanup test for end of loop Dan Carpenter
@ 2010-08-12  8:02 ` Laurent Pinchart
  0 siblings, 0 replies; 2+ messages in thread
From: Laurent Pinchart @ 2010-08-12  8:02 UTC (permalink / raw)
  To: kernel-janitors

Hi Dan,

Thanks for the patch.

On Thursday 12 August 2010 09:59:58 Dan Carpenter wrote:
> We're trying to test for the the end of the loop here.  "format" is
> never NULL.  We don't know what "format->fcc" is because we're past the
> end of the loop and I think "fmt->fmt.pix.pixelformat" comes from the
> user so we don't know what that is either.  It works, but it's cleaner
> to just test to see if (i = ARRAY_SIZE(uvc_formats).
> 
> Signed-off-by: Dan Carpenter <error27@gmail.com>

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c
> index 2dcffda..5e807f0 100644
> --- a/drivers/usb/gadget/uvc_v4l2.c
> +++ b/drivers/usb/gadget/uvc_v4l2.c
> @@ -94,7 +94,7 @@ uvc_v4l2_set_format(struct uvc_video *video, struct
> v4l2_format *fmt) break;
>  	}
> 
> -	if (format = NULL || format->fcc != fmt->fmt.pix.pixelformat) {
> +	if (i = ARRAY_SIZE(uvc_formats)) {
>  		printk(KERN_INFO "Unsupported format 0x%08x.\n",
>  			fmt->fmt.pix.pixelformat);
>  		return -EINVAL;

-- 
Regards,

Laurent Pinchart

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2010-08-12  7:59 [patch] usb/uvc_v4l2: cleanup test for end of loop Dan Carpenter
2010-08-12  8:02 ` Laurent Pinchart

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