diff options
| author |   Dan Murphy <dmurphy@ti.com> | 2019-11-26 08:38:56 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-26 14:42:55 -0800 |
| commit | 786c4a5372e11919b5ea010a7338bac9ef08c732 (patch) | |
| tree | a0fc9202aab91babf2fe4af61bcbd23eb5c012f4 /drivers/net/phy | |
| parent | net: psample: fix skb_over_panic (diff) | |
| download | linux-dev-786c4a5372e11919b5ea010a7338bac9ef08c732.tar.xz linux-dev-786c4a5372e11919b5ea010a7338bac9ef08c732.zip | |
net: phy: dp83869: Fix return paths to return proper values
Fix the return paths for all I/O operations to ensure
that the I/O completed successfully. Then pass the return
to the caller for further processing
Fixes: 01db923e8377 ("net: phy: dp83869: Add TI dp83869 phy")
Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/dp83869.c | 49 |
1 files changed, 26 insertions, 23 deletions
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c index 1c7a7c57dec3..93021904c5e4 100644 --- a/drivers/net/phy/dp83869.c +++ b/drivers/net/phy/dp83869.c @@ -151,13 +151,13 @@ static int dp83869_config_port_mirroring(struct phy_device *phydev) struct dp83869_private *dp83869 = phydev->priv; if (dp83869->port_mirroring == DP83869_PORT_MIRRORING_EN) - phy_set_bits_mmd(phydev, DP83869_DEVADDR, DP83869_GEN_CFG3, - DP83869_CFG3_PORT_MIRROR_EN); + return phy_set_bits_mmd(phydev, DP83869_DEVADDR, + DP83869_GEN_CFG3, + DP83869_CFG3_PORT_MIRROR_EN); else - phy_clear_bits_mmd(phydev, DP83869_DEVADDR, DP83869_GEN_CFG3, - DP83869_CFG3_PORT_MIRROR_EN); - - return 0; + return phy_clear_bits_mmd(phydev, DP83869_DEVADDR, + DP83869_GEN_CFG3, + DP83869_CFG3_PORT_MIRROR_EN); } #ifdef CONFIG_OF_MDIO @@ -204,7 +204,7 @@ static int dp83869_of_init(struct phy_device *phydev) &dp83869->tx_fifo_depth)) dp83869->tx_fifo_depth = DP83869_PHYCR_FIFO_DEPTH_4_B_NIB; - return 0; + return ret; } #else static int dp83869_of_init(struct phy_device *phydev) @@ -216,7 +216,7 @@ static int dp83869_of_init(struct phy_device *phydev) static int dp83869_configure_rgmii(struct phy_device *phydev, struct dp83869_private *dp83869) { - int ret, val; + int ret = 0, val; if (phy_interface_is_rgmii(phydev)) { val = phy_read(phydev, MII_DP83869_PHYCTRL); @@ -233,13 +233,13 @@ static int dp83869_configure_rgmii(struct phy_device *phydev, } if (dp83869->io_impedance >= 0) - phy_modify_mmd(phydev, DP83869_DEVADDR, - DP83869_IO_MUX_CFG, - DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL, - dp83869->io_impedance & - DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL); + ret = phy_modify_mmd(phydev, DP83869_DEVADDR, + DP83869_IO_MUX_CFG, + DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL, + dp83869->io_impedance & + DP83869_IO_MUX_CFG_IO_IMPEDANCE_CTRL); - return 0; + return ret; } static int dp83869_configure_mode(struct phy_device *phydev, @@ -284,9 +284,11 @@ static int dp83869_configure_mode(struct phy_device *phydev, return ret; break; case DP83869_RGMII_SGMII_BRIDGE: - phy_modify_mmd(phydev, DP83869_DEVADDR, DP83869_OP_MODE, - DP83869_SGMII_RGMII_BRIDGE, - DP83869_SGMII_RGMII_BRIDGE); + ret = phy_modify_mmd(phydev, DP83869_DEVADDR, DP83869_OP_MODE, + DP83869_SGMII_RGMII_BRIDGE, + DP83869_SGMII_RGMII_BRIDGE); + if (ret) + return ret; ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_FX_CTRL, DP83869_FX_CTRL_DEFAULT); @@ -334,7 +336,7 @@ static int dp83869_configure_mode(struct phy_device *phydev, return -EINVAL; }; - return 0; + return ret; } static int dp83869_config_init(struct phy_device *phydev) @@ -358,12 +360,13 @@ static int dp83869_config_init(struct phy_device *phydev) /* Clock output selection if muxing property is set */ if (dp83869->clk_output_sel != DP83869_CLK_O_SEL_REF_CLK) - phy_modify_mmd(phydev, DP83869_DEVADDR, DP83869_IO_MUX_CFG, - DP83869_IO_MUX_CFG_CLK_O_SEL_MASK, - dp83869->clk_output_sel << - DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT); + ret = phy_modify_mmd(phydev, + DP83869_DEVADDR, DP83869_IO_MUX_CFG, + DP83869_IO_MUX_CFG_CLK_O_SEL_MASK, + dp83869->clk_output_sel << + DP83869_IO_MUX_CFG_CLK_O_SEL_SHIFT); - return 0; + return ret; } static int dp83869_probe(struct phy_device *phydev) |