Messages in this thread | | | Date | Thu, 16 Jun 2022 15:34:18 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH net-next v1 1/1] net: dsa: ar9331: fix potential dead lock on mdio access |
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> static int ar9331_mdio_read(void *ctx, const void *reg_buf, size_t reg_len, > @@ -849,6 +849,8 @@ static int ar9331_mdio_read(void *ctx, const void *reg_buf, size_t reg_len, > return 0; > } > > + mutex_lock_nested(&sbus->mdio_lock, MDIO_MUTEX_NESTED); > +
Do you know about mdiobus_read_nested() and mdiobus_write_nested(). The mv88e6xxx driver uses these.
Andrew
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