diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-03-17 14:52:26 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-17 22:51:16 -0700 |
| commit | 89e3e3ddcb6850d8208743e1c52a7a9dd38e5455 (patch) | |
| tree | 2f2d8182334c29a3d71fe576d3cd370dd35144c6 /drivers/net/phy/mdio_bus.c | |
| parent | 54e1dc70dc6193385a5dbb7c93fc67ab16a4818d (diff) | |
net: mdiobus: avoid BUG_ON() in mdiobus accessors
Avoid using BUG_ON() in the mdiobus accessors, prefering instead to use
WARN_ON_ONCE() and returning an error.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/mdio_bus.c')
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 3ab9ca7614d1..129e60630319 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -841,7 +841,8 @@ int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum) { int retval; - BUG_ON(in_interrupt()); + if (WARN_ON_ONCE(in_interrupt())) + return -EINVAL; mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); retval = __mdiobus_read(bus, addr, regnum); @@ -865,7 +866,8 @@ int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum) { int retval; - BUG_ON(in_interrupt()); + if (WARN_ON_ONCE(in_interrupt())) + return -EINVAL; mutex_lock(&bus->mdio_lock); retval = __mdiobus_read(bus, addr, regnum); @@ -893,7 +895,8 @@ int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val) { int err; - BUG_ON(in_interrupt()); + if (WARN_ON_ONCE(in_interrupt())) + return -EINVAL; mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); err = __mdiobus_write(bus, addr, regnum, val); @@ -918,7 +921,8 @@ int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val) { int err; - BUG_ON(in_interrupt()); + if (WARN_ON_ONCE(in_interrupt())) + return -EINVAL; mutex_lock(&bus->mdio_lock); err = __mdiobus_write(bus, addr, regnum, val); |