diff mbox

RDS: IB: fix ifnullfree.cocci warnings

Message ID 20170223124700.GA9908@lkp-hsx03.lkp.intel.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Fengguang Wu Feb. 23, 2017, 12:47 p.m. UTC
net/rds/ib.c:115:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.

 NULL check before some freeing functions is not needed.

 Based on checkpatch warning
 "kfree(NULL) is safe this check is probably not required"
 and kfreeaddr.cocci by Julia Lawall.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

 ib.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

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Comments

Santosh Shilimkar Feb. 23, 2017, 4:35 p.m. UTC | #1
On 2/23/2017 4:47 AM, kbuild test robot wrote:
> net/rds/ib.c:115:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
>
>  NULL check before some freeing functions is not needed.
>
>  Based on checkpatch warning
>  "kfree(NULL) is safe this check is probably not required"
>  and kfreeaddr.cocci by Julia Lawall.
>
> Generated by: scripts/coccinelle/free/ifnullfree.cocci
>
> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
> ---
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
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David Miller Feb. 24, 2017, 4:11 p.m. UTC | #2
From: kbuild test robot <fengguang.wu@intel.com>
Date: Thu, 23 Feb 2017 20:47:01 +0800

> net/rds/ib.c:115:2-7: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
> 
>  NULL check before some freeing functions is not needed.
> 
>  Based on checkpatch warning
>  "kfree(NULL) is safe this check is probably not required"
>  and kfreeaddr.cocci by Julia Lawall.
> 
> Generated by: scripts/coccinelle/free/ifnullfree.cocci
> 
> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>

Applied.
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diff mbox

Patch

--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -111,8 +111,7 @@  static void rds_ib_dev_free(struct work_
 		kfree(i_ipaddr);
 	}
 
-	if (rds_ibdev->vector_load)
-		kfree(rds_ibdev->vector_load);
+	kfree(rds_ibdev->vector_load);
 
 	kfree(rds_ibdev);
 }