Commit 3eb8feeb authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller

net: dsa: check master device before put

In the case of pdata, the dsa_cpu_parse function calls dev_put() before
making sure it isn't NULL. Fix this.

Fixes: 71e0bbde ("net: dsa: Add support for platform data")
Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 829385f0
......@@ -496,13 +496,14 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
if (!ethernet)
return -EINVAL;
ethernet_dev = of_find_net_device_by_node(ethernet);
if (!ethernet_dev)
return -EPROBE_DEFER;
} else {
ethernet_dev = dsa_dev_to_net_device(ds->cd->netdev[index]);
dev_put(ethernet_dev);
}
if (!ethernet_dev)
return -EPROBE_DEFER;
dev_put(ethernet_dev);
}
if (!dst->cpu_dp) {
dst->cpu_dp = port;
......
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