From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 21 Apr 2017 10:49:37 +0000 (+0300)
Subject: net: tc35815: move free after the dereference
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=11faa7b0359aaf7efd406b7a6a077fda2b037d8e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

net: tc35815: move free after the dereference

We dereference "skb" to get "skb->len" so we should probably do that
step before freeing the skb.

Fixes: eea221ce4880 ("tc35815 driver update (take 2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
index a45f98fa4aa7..3dadee1080b9 100644
--- a/drivers/net/ethernet/toshiba/tc35815.c
+++ b/drivers/net/ethernet/toshiba/tc35815.c
@@ -1017,8 +1017,8 @@ tc35815_free_queues(struct net_device *dev)
 			BUG_ON(lp->tx_skbs[i].skb != skb);
 #endif
 			if (skb) {
-				dev_kfree_skb(skb);
 				pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
+				dev_kfree_skb(skb);
 				lp->tx_skbs[i].skb = NULL;
 				lp->tx_skbs[i].skb_dma = 0;
 			}