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vxlan: check return value of gro_cells_init()

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[ Upstream commit 384d91c267e621e0926062cfb3f20cb72dc16928 ]

gro_cells_init() returns error if memory allocation is failed.
But the vxlan module doesn't check the return value of gro_cells_init().

Fixes: 58ce31cca1ff ("vxlan: GRO support at tunnel layer")`
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Taehee Yoo 2020-03-18 13:28:09 +00:00 committed by prashantpaddune
parent b0195abd3f
commit 23a6847d35
1 changed files with 9 additions and 2 deletions
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11
drivers/net/vxlan.c
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@ -2303,10 +2303,19 @@ static void vxlan_vs_add_dev(struct vxlan_sock *vs, struct vxlan_dev *vxlan)
/* Setup stats when device is created */
static int vxlan_init(struct net_device *dev)
{
struct vxlan_dev *vxlan = netdev_priv(dev);
int err;
dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
err = gro_cells_init(&vxlan->gro_cells, dev);
if (err) {
free_percpu(dev->tstats);
return err;
}
return 0;
}
@ -2584,8 +2593,6 @@ static void vxlan_setup(struct net_device *dev)
vxlan->dev = dev;
gro_cells_init(&vxlan->gro_cells, dev);
for (h = 0; h < FDB_HASH_SIZE; ++h)
INIT_HLIST_HEAD(&vxlan->fdb_head[h]);
}