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authorFlorian Fainelli <florian@openwrt.org>2013-03-25 05:03:40 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-25 12:23:41 -0400
commit5f64a7dbf593c2317f132c8252d04cdfe8d4b104 (patch)
tree544ab11b3ab0f788ae8a7e087b62ac4590579785 /net/dsa
parent21168245031062212c0b805d0bd466ee6dd4a16f (diff)
downloadlinux-stericsson-5f64a7dbf593c2317f132c8252d04cdfe8d4b104.tar.gz
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>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index aa2ff583b7ed..0eb5d5e76dfb 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -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);