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authorVladimir Oltean <vladimir.oltean@nxp.com>2020-09-18 04:07:27 +0300
committerDavid S. Miller <davem@davemloft.net>2020-09-18 13:52:34 -0700
commitd1cc0e932039cc40357baf037ab403d1d2e228fd (patch)
treec156bc3b48b2cb7e4a68b360c3765c943bacff64 /drivers/net/ethernet
parentc9d4b2cf16021d1f65e764f4035d7d1616e3bda3 (diff)
net: mscc: ocelot: error checking when calling ocelot_init()
ocelot_init() allocates memory, resets the switch and polls for a status register, things which can fail. Stop probing the driver in that case, and propagate the error result. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/mscc/ocelot_vsc7514.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
index 904ea299a5e8..a1cbb20a7757 100644
--- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c
+++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
@@ -1002,7 +1002,10 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
ocelot->vcap_is2_actions = vsc7514_vcap_is2_actions;
ocelot->vcap = vsc7514_vcap_props;
- ocelot_init(ocelot);
+ err = ocelot_init(ocelot);
+ if (err)
+ goto out_put_ports;
+
if (ocelot->ptp) {
err = ocelot_init_timestamp(ocelot, &ocelot_ptp_clock_info);
if (err) {