diff options
| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2022-08-26 12:56:23 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-08-31 09:41:23 +0100 |
| commit | 9da975e1bbef6804145743a6ec0cae0f2f3f4c09 (patch) | |
| tree | a042da5ff9acb9d70a6c5ea0b25a954f1c04eb86 /drivers/net/dsa | |
| parent | d38bc3b4b8a6a01170d7f79f2c48ca678d135bbb (diff) | |
net: dsa: microchip: ksz9477: add error handling to ksz9477_r/w_phy
Now ksz_pread/ksz_pwrite can return error value. So, make use of it.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz9477.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c index a4f682d3e1fe..f60ceaf25a66 100644 --- a/drivers/net/dsa/microchip/ksz9477.c +++ b/drivers/net/dsa/microchip/ksz9477.c @@ -277,6 +277,7 @@ static void ksz9477_r_phy_quirks(struct ksz_device *dev, u16 addr, u16 reg, int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data) { u16 val = 0xffff; + int ret; /* No real PHY after this. Simulate the PHY. * A fixed PHY can be setup in the device tree, but this function is @@ -317,7 +318,10 @@ int ksz9477_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data) break; } } else { - ksz_pread16(dev, addr, 0x100 + (reg << 1), &val); + ret = ksz_pread16(dev, addr, 0x100 + (reg << 1), &val); + if (ret) + return ret; + ksz9477_r_phy_quirks(dev, addr, reg, &val); } @@ -334,11 +338,9 @@ int ksz9477_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val) /* No gigabit support. Do not write to this register. */ if (!dev->info->gbit_capable[addr] && reg == MII_CTRL1000) - return 0; + return -ENXIO; - ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val); - - return 0; + return ksz_pwrite16(dev, addr, 0x100 + (reg << 1), val); } void ksz9477_cfg_port_member(struct ksz_device *dev, int port, u8 member) |