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path: root/drivers/net/phy/mii_timestamper.c
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Diffstat (limited to 'drivers/net/phy/mii_timestamper.c')
-rw-r--r--drivers/net/phy/mii_timestamper.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/phy/mii_timestamper.c b/drivers/net/phy/mii_timestamper.c
index 2f12c5d901df..b71b7456462d 100644
--- a/drivers/net/phy/mii_timestamper.c
+++ b/drivers/net/phy/mii_timestamper.c
@@ -111,6 +111,13 @@ void unregister_mii_timestamper(struct mii_timestamper *mii_ts)
struct mii_timestamping_desc *desc;
struct list_head *this;
+ /* 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.
+ */
+ if (!mii_ts->device)
+ return;
+
mutex_lock(&tstamping_devices_lock);
list_for_each(this, &mii_timestamping_devices) {
desc = list_entry(this, struct mii_timestamping_desc, list);