The "state" pointer points to an offset in the middle of the "mgmt"
struct so it can't possibly be NULL.  And also we dereferenced it on the
line before.  So this NULL check is pointless.  Delete it.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
 .../staging/vc04_services/interface/vchiq_arm/vchiq_dev.c    | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
index 9fe35864936c..3c63347d2d08 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
@@ -1170,11 +1170,6 @@ static int vchiq_open(struct inode *inode, struct file *file)
 
 	dev_dbg(state->dev, "arm: vchiq open\n");
 
-	if (!state) {
-		dev_err(state->dev, "arm: vchiq has no connection to VideoCore\n");
-		return -ENOTCONN;
-	}
-
 	instance = kzalloc(sizeof(*instance), GFP_KERNEL);
 	if (!instance)
 		return -ENOMEM;
-- 
2.43.0

HI Dan,

Thank you for the patch

On 24/04/24 5:13 pm, Dan Carpenter wrote:
> The "state" pointer points to an offset in the middle of the "mgmt"
> struct so it can't possibly be NULL.  And also we dereferenced it on the
> line before.  So this NULL check is pointless.  Delete it.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>

Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
> ---
>   .../staging/vc04_services/interface/vchiq_arm/vchiq_dev.c    | 5 -----
>   1 file changed, 5 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
> index 9fe35864936c..3c63347d2d08 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c
> @@ -1170,11 +1170,6 @@ static int vchiq_open(struct inode *inode, struct file *file)
>   
>   	dev_dbg(state->dev, "arm: vchiq open\n");
>   
> -	if (!state) {
> -		dev_err(state->dev, "arm: vchiq has no connection to VideoCore\n");
> -		return -ENOTCONN;
> -	}
> -
>   	instance = kzalloc(sizeof(*instance), GFP_KERNEL);
>   	if (!instance)
>   		return -ENOMEM;

Am 24.04.24 um 13:43 schrieb Dan Carpenter:
> The "state" pointer points to an offset in the middle of the "mgmt"
> struct so it can't possibly be NULL.  And also we dereferenced it on the
> line before.  So this NULL check is pointless.  Delete it.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>

Thanks