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* [PATCH net-next] s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
@ 2019-09-15 17:21 Julian Wiedmann
  2019-09-16 19:45 ` David Miller
  0 siblings, 1 reply; 2+ messages in thread
From: Julian Wiedmann @ 2019-09-15 17:21 UTC (permalink / raw)
  To: David Miller
  Cc: netdev, linux-s390, Heiko Carstens, Stefan Raspl, Ursula Braun,
	Markus Elfring, Julian Wiedmann

From: Markus Elfring <elfring@users.sourceforge.net>

The dev_kfree_skb() function performs also input parameter validation.
Thus the test around the shown calls is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
---
 drivers/s390/net/ctcm_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 2117870ed855..437a6d822105 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1072,10 +1072,8 @@ static void ctcm_free_netdevice(struct net_device *dev)
 		if (grp) {
 			if (grp->fsm)
 				kfree_fsm(grp->fsm);
-			if (grp->xid_skb)
-				dev_kfree_skb(grp->xid_skb);
-			if (grp->rcvd_xid_skb)
-				dev_kfree_skb(grp->rcvd_xid_skb);
+			dev_kfree_skb(grp->xid_skb);
+			dev_kfree_skb(grp->rcvd_xid_skb);
 			tasklet_kill(&grp->mpc_tasklet2);
 			kfree(grp);
 			priv->mpcg = NULL;
-- 
2.17.1

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2019-09-15 17:21 [PATCH net-next] s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb” Julian Wiedmann
2019-09-16 19:45 ` David Miller

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