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[RFC,v3,net-next,04/10] net: dsa: ocelot: felix: Remove requirement for PCS in felix devices

Message ID 20210814025003.2449143-5-colin.foster@in-advantage.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series add support for VSC75XX control over SPI | expand

Checks

Context Check Description
netdev/apply fail Patch does not apply to net-next
netdev/tree_selection success Clearly marked for net-next

Commit Message

Colin Foster Aug. 14, 2021, 2:49 a.m. UTC 
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>
---
 drivers/net/dsa/ocelot/felix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index ce607fbaaa3a..74ae322b2126 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -852,7 +852,7 @@  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);
 }