Re: [PATCH v1 1/1] IB/core: Fix static analysis warning in ib_policy_change_task

2017-07-05 Thread Paul Moore
On Wed, Jul 5, 2017 at 9:15 AM, Dan Jurgens  wrote:
> From: Daniel Jurgens 
>
> ib_get_cached_subnet_prefix can technically fail, but the only way it
> could is not possible based on the loop conditions. Check the return
> value before using the variable sp to resolve a static analysis warning.
>
> Fixes: 8f408ab64be6 ("selinux lsm IB/core: Implement LSM notification
> system")
> Signed-off-by: Daniel Jurgens 
> Reported-by: Dan Carpenter 
>
> -v1:
> - Fix check to !ret. Paul Moore
> ---
>  drivers/infiniband/core/device.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Thanks for the update, merged.  I'm doing a sanity build right now,
assuming all goes well I'll send this up tomorrow.

> diff --git a/drivers/infiniband/core/device.c 
> b/drivers/infiniband/core/device.c
> index 631eaa9..a5dfab6 100644
> --- a/drivers/infiniband/core/device.c
> +++ b/drivers/infiniband/core/device.c
> @@ -376,7 +376,8 @@ static void ib_policy_change_task(struct work_struct 
> *work)
> WARN_ONCE(ret,
>   "ib_get_cached_subnet_prefix err: %d, this 
> should never happen here\n",
>   ret);
> -   ib_security_cache_change(dev, i, sp);
> +   if (!ret)
> +   ib_security_cache_change(dev, i, sp);
> }
> }
> up_read(&lists_rwsem);
> --
> 1.8.3.1

-- 
paul moore
www.paul-moore.com


[PATCH v1 1/1] IB/core: Fix static analysis warning in ib_policy_change_task

2017-07-05 Thread Dan Jurgens
From: Daniel Jurgens 

ib_get_cached_subnet_prefix can technically fail, but the only way it
could is not possible based on the loop conditions. Check the return
value before using the variable sp to resolve a static analysis warning.

Fixes: 8f408ab64be6 ("selinux lsm IB/core: Implement LSM notification
system")
Signed-off-by: Daniel Jurgens 
Reported-by: Dan Carpenter 

-v1:
- Fix check to !ret. Paul Moore
---
 drivers/infiniband/core/device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 631eaa9..a5dfab6 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -376,7 +376,8 @@ static void ib_policy_change_task(struct work_struct *work)
WARN_ONCE(ret,
  "ib_get_cached_subnet_prefix err: %d, this 
should never happen here\n",
  ret);
-   ib_security_cache_change(dev, i, sp);
+   if (!ret)
+   ib_security_cache_change(dev, i, sp);
}
}
up_read(&lists_rwsem);
-- 
1.8.3.1