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net: dsa: ocelot: felix: Remove requirement for PCS in felix devices 

Existing felix devices all have an initialized pcs array. Future devices
might not, so running a NULL check on the array before dereferencing it
will allow those future drivers to not crash at this point

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Colin Foster 2021-12-07 09:00:28 -08:00 committed by Jakub Kicinski
parent c99104840a
commit 49af6a7620
1 changed files with 1 additions and 1 deletions
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2
drivers/net/dsa/ocelot/felix.c
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@ -828,7 +828,7 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port,
struct felix *felix = ocelot_to_felix(ocelot);
struct dsa_port *dp = dsa_to_port(ds, port);
if (felix->pcs[port])
if (felix->pcs && felix->pcs[port])
phylink_set_pcs(dp->pl, &felix->pcs[port]->pcs);
}