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dsa: fix freeing of sparse port allocation 

If we have defined a sparse port allocation which is non-contiguous and
contains gaps, the code freeing port_names will just stop when it
encouters a first NULL port_names, which is not right, we should iterate
over all possible number of ports (DSA_MAX_PORTS) until we are done.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2013-03-25 05:03:40 +00:00 committed by David S. Miller
parent 2116824503
commit 5f64a7dbf5
1 changed files with 5 additions and 3 deletions
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8
net/dsa/dsa.c
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@ -350,9 +350,11 @@ static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
for (i = 0; i < pd->nr_chips; i++) {
port_index = 0;
while (pd->chip[i].port_names &&
pd->chip[i].port_names[++port_index])
kfree(pd->chip[i].port_names[port_index]);
while (port_index < DSA_MAX_PORTS) {
if (pd->chip[i].port_names[port_index])
kfree(pd->chip[i].port_names[port_index]);
port_index++;
}
kfree(pd->chip[i].rtable);
}
kfree(pd->chip);