[PATCH net-next v8 07/15] net: mii_timestamper: check NULL in unregister_mii_timestamper()
From: Ioana Ciornei <hidden>
Date: 2021-06-10 16:41:45
Also in:
linux-acpi, lkml, netdev
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Calvin Johnson <redacted> Callers of unregister_mii_timestamper() currently check for NULL value of mii_ts before calling it. Place the NULL check inside unregister_mii_timestamper() and update the callers accordingly. Signed-off-by: Calvin Johnson <redacted> Reviewed-by: Andy Shevchenko <redacted> Suggested-by: Andy Shevchenko <redacted> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> --- Changes in v8: None Changes in v7: - check NULL in unregister_mii_timestamper() Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/net/mdio/of_mdio.c | 6 ++---- drivers/net/phy/mii_timestamper.c | 3 +++ drivers/net/phy/phy_device.c | 3 +-- 3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index 29f121cba314..d73c0570f19c 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c@@ -115,15 +115,13 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, else phy = get_phy_device(mdio, addr, is_c45); if (IS_ERR(phy)) { - if (mii_ts) - unregister_mii_timestamper(mii_ts); + unregister_mii_timestamper(mii_ts); return PTR_ERR(phy); } rc = of_mdiobus_phy_device_register(mdio, phy, child, addr); if (rc) { - if (mii_ts) - unregister_mii_timestamper(mii_ts); + unregister_mii_timestamper(mii_ts); phy_device_free(phy); return rc; }
diff --git a/drivers/net/phy/mii_timestamper.c b/drivers/net/phy/mii_timestamper.c
index b71b7456462d..51ae0593a04f 100644
--- a/drivers/net/phy/mii_timestamper.c
+++ b/drivers/net/phy/mii_timestamper.c@@ -111,6 +111,9 @@ void unregister_mii_timestamper(struct mii_timestamper *mii_ts) struct mii_timestamping_desc *desc; struct list_head *this; + if (!mii_ts) + return; + /* mii_timestamper statically registered by the PHY driver won't use the * register_mii_timestamper() and thus don't have ->device set. Don't * try to unregister these.
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 0ce5c7274930..e4b935b0b71b 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c@@ -945,8 +945,7 @@ EXPORT_SYMBOL(phy_device_register); */ void phy_device_remove(struct phy_device *phydev) { - if (phydev->mii_ts) - unregister_mii_timestamper(phydev->mii_ts); + unregister_mii_timestamper(phydev->mii_ts); device_del(&phydev->mdio.dev);
--
2.31.1
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