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-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c24
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index af63710e93c1..39c7ad7e490f 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -714,9 +714,12 @@ static void mv88e6xxx_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) {
stat = &mv88e6xxx_hw_stats[i];
if (stat->type & types) {
+ mutex_lock(&chip->reg_lock);
data[j] = _mv88e6xxx_get_ethtool_stat(chip, stat, port,
bank1_select,
histogram);
+ mutex_unlock(&chip->reg_lock);
+
j++;
}
}
@@ -764,14 +767,13 @@ static void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, int port,
mutex_lock(&chip->reg_lock);
ret = mv88e6xxx_stats_snapshot(chip, port);
- if (ret < 0) {
- mutex_unlock(&chip->reg_lock);
+ mutex_unlock(&chip->reg_lock);
+
+ if (ret < 0)
return;
- }
mv88e6xxx_get_stats(chip, port, data);
- mutex_unlock(&chip->reg_lock);
}
static int mv88e6xxx_stats_set_histogram(struct mv88e6xxx_chip *chip)
@@ -1435,7 +1437,9 @@ static int mv88e6xxx_port_db_dump_fid(struct mv88e6xxx_chip *chip,
eth_broadcast_addr(addr.mac);
do {
+ mutex_lock(&chip->reg_lock);
err = mv88e6xxx_g1_atu_getnext(chip, fid, &addr);
+ mutex_unlock(&chip->reg_lock);
if (err)
return err;
@@ -1468,7 +1472,10 @@ static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port,
int err;
/* Dump port's default Filtering Information Database (VLAN ID 0) */
+ mutex_lock(&chip->reg_lock);
err = mv88e6xxx_port_get_fid(chip, port, &fid);
+ mutex_unlock(&chip->reg_lock);
+
if (err)
return err;
@@ -1478,7 +1485,9 @@ static int mv88e6xxx_port_db_dump(struct mv88e6xxx_chip *chip, int port,
/* Dump VLANs' Filtering Information Databases */
do {
+ mutex_lock(&chip->reg_lock);
err = mv88e6xxx_vtu_getnext(chip, &vlan);
+ mutex_unlock(&chip->reg_lock);
if (err)
return err;
@@ -1498,13 +1507,8 @@ static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,
dsa_fdb_dump_cb_t *cb, void *data)
{
struct mv88e6xxx_chip *chip = ds->priv;
- int err;
- mutex_lock(&chip->reg_lock);
- err = mv88e6xxx_port_db_dump(chip, port, cb, data);
- mutex_unlock(&chip->reg_lock);
-
- return err;
+ return mv88e6xxx_port_db_dump(chip, port, cb, data);
}
static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,