target/linux/generic/pending-4.19/754-net-sfp-fix-unbind.patch

   1 From 729fd05aac22cdf1e502fbf1bf80e5ebba0d9fbc Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Tue, 3 Dec 2019 17:48:28 +0000
   4 Subject: [PATCH] net: sfp: fix unbind
   5
   6 When unbinding, we don't correctly tear down the module state, leaving
   7 (for example) the hwmon registration behind. Ensure everything is
   8 properly removed by sending a remove event at unbind.
   9
  10 Fixes: 6b0da5c9c1a3 ("net: sfp: track upstream's attachment state in state machine")
  11 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
  12 ---
  13  drivers/net/phy/sfp.c | 4 ++++
  14  1 file changed, 4 insertions(+)
  15
  16 --- a/drivers/net/phy/sfp.c
  17 +++ b/drivers/net/phy/sfp.c
  18 @@ -2242,6 +2242,10 @@ static int sfp_remove(struct platform_de
  19
  20         sfp_unregister_socket(sfp->sfp_bus);
  21
  22 +       rtnl_lock();
  23 +       sfp_sm_event(sfp, SFP_E_REMOVE);
  24 +       rtnl_unlock();
  25 +
  26         return 0;
  27  }
  28