diff options
| author | Calvin Johnson <calvin.johnson@oss.nxp.com> | 2021-06-11 13:53:53 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-11 13:08:52 -0700 |
| commit | b9926da003cab58594803a2bc5a1d5bd7c670eba (patch) | |
| tree | 306f614f582f2e98e9062a7d1070a7525c118b26 /drivers/net/phy/mii_timestamper.c | |
| parent | cf99686072a1b7037a1d782b66037b2b722bf2c9 (diff) | |
net: mii_timestamper: check NULL in unregister_mii_timestamper()
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 <calvin.johnson@oss.nxp.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Grant Likely <grant.likely@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/mii_timestamper.c')
| -rw-r--r-- | drivers/net/phy/mii_timestamper.c | 3 |
1 files changed, 3 insertions, 0 deletions
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. |