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authorVivien Didelot <vivien.didelot@gmail.com>2019-10-21 16:51:28 -0400
committerJakub Kicinski <jakub.kicinski@netronome.com>2019-10-22 12:37:07 -0700
commitd5a619bf60ecf910175606921b4610a2842c635e (patch)
tree45c56f0c2f5482cee1dac26eb0364d02295ab841 /drivers/net/dsa/sja1105/sja1105_main.c
parentef2025ec0acc92fa15ad3df386cb18fefe880643 (diff)
downloadlinux-d5a619bf60ecf910175606921b4610a2842c635e.tar.bz2
net: dsa: sja1105: register switch before assigning port private data
Like the dsa_switch_tree structures, the dsa_port structures will be allocated on switch registration. The SJA1105 driver is the only one accessing the dsa_port structure after the switch allocation and before the switch registration. For that reason, move switch registration prior to assigning the priv member of the dsa_port structures. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Diffstat (limited to 'drivers/net/dsa/sja1105/sja1105_main.c')
-rw-r--r--drivers/net/dsa/sja1105/sja1105_main.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index 4b0cb779f187..0ebbda5ca665 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -2057,6 +2057,15 @@ static int sja1105_probe(struct spi_device *spi)
tagger_data = &priv->tagger_data;
+ mutex_init(&priv->ptp_data.lock);
+ mutex_init(&priv->mgmt_lock);
+
+ sja1105_tas_setup(ds);
+
+ rc = dsa_register_switch(priv->ds);
+ if (rc)
+ return rc;
+
/* Connections between dsa_port and sja1105_port */
for (i = 0; i < SJA1105_NUM_PORTS; i++) {
struct sja1105_port *sp = &priv->ports[i];
@@ -2065,12 +2074,8 @@ static int sja1105_probe(struct spi_device *spi)
sp->dp = dsa_to_port(ds, i);
sp->data = tagger_data;
}
- mutex_init(&priv->ptp_data.lock);
- mutex_init(&priv->mgmt_lock);
- sja1105_tas_setup(ds);
-
- return dsa_register_switch(priv->ds);
+ return 0;
}
static int sja1105_remove(struct spi_device *spi)