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| author | Florian Fainelli <f.fainelli@gmail.com> | 2015-07-11 18:02:11 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-11 23:25:16 -0700 |
| commit | c8cf89f73f3d9ecbdea479778f0ac714be79be33 (patch) | |
| tree | b35f6925713d88442f5a3e5d2490b9165ba42b29 /net/dsa | |
| parent | 8f5063e97f393d49611151d3cf7dcbeb41397f12 (diff) | |
| download | blackbird-op-linux-c8cf89f73f3d9ecbdea479778f0ac714be79be33.tar.gz blackbird-op-linux-c8cf89f73f3d9ecbdea479778f0ac714be79be33.zip | |
net: dsa: Fix off-by-one in switch address parsing
cd->sw_addr is used as a MDIO bus address, which cannot exceed
PHY_MAX_ADDR (32), our check was off-by-one.
Fixes: 5e95329b701c ("dsa: add device tree bindings to register DSA switches")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/dsa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 52beeb8829dc..b445d492c115 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -630,7 +630,7 @@ static int dsa_of_probe(struct device *dev) continue; cd->sw_addr = be32_to_cpup(sw_addr); - if (cd->sw_addr > PHY_MAX_ADDR) + if (cd->sw_addr >= PHY_MAX_ADDR) continue; if (!of_property_read_u32(child, "eeprom-length", &eeprom_len)) |
