pwc: precedence bug in pwc_init_controls()

Message ID 20110723185303.GA3711@shale.localdomain (mailing list archive)
State Accepted, archived
Headers

Commit Message

Dan Carpenter July 23, 2011, 6:53 p.m. UTC
  '!' has higher precedence than '&' so we need parenthesis here.

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

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Comments

Hans de Goede July 24, 2011, 3:22 p.m. UTC | #1
Hi,

Thanks I've added your patch to my gspca/pwc tree and
send an updated pull request to Mauro including your patch.

Regards,

Hans


On 07/23/2011 08:53 PM, Dan Carpenter wrote:
> '!' has higher precedence than'&' so we need parenthesis here.
>
> Signed-off-by: Dan Carpenter<error27@gmail.com>
>
> diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
> index e9a0e94..8c70e64 100644
> --- a/drivers/media/video/pwc/pwc-v4l.c
> +++ b/drivers/media/video/pwc/pwc-v4l.c
> @@ -338,7 +338,7 @@ int pwc_init_controls(struct pwc_device *pdev)
>   	if (pdev->restore_factory)
>   		pdev->restore_factory->flags = V4L2_CTRL_FLAG_UPDATE;
>
> -	if (!pdev->features&  FEATURE_MOTOR_PANTILT)
> +	if (!(pdev->features&  FEATURE_MOTOR_PANTILT))
>   		return hdl->error;
>
>   	/* Motor pan / tilt / reset */
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Patch

diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index e9a0e94..8c70e64 100644
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -338,7 +338,7 @@  int pwc_init_controls(struct pwc_device *pdev)
 	if (pdev->restore_factory)
 		pdev->restore_factory->flags = V4L2_CTRL_FLAG_UPDATE;
 
-	if (!pdev->features & FEATURE_MOTOR_PANTILT)
+	if (!(pdev->features & FEATURE_MOTOR_PANTILT))
 		return hdl->error;
 
 	/* Motor pan / tilt / reset */