diff options
| author | Kory Maincent <kory.maincent@bootlin.com> | 2025-01-29 10:50:47 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-01-30 11:23:01 +0100 |
| commit | b95102215a8d0987789715ce11c0d4ec031cbfbe (patch) | |
| tree | 5d7596b980c6c75a37c45f56f22102f14c799cf6 | |
| parent | 2c2ebb2b49573e5f8726112ad06b1dffc3c9ea03 (diff) | |
net: sh_eth: Fix missing rtnl lock in suspend/resume path
Fix the suspend/resume path by ensuring the rtnl lock is held where
required. Calls to sh_eth_close, sh_eth_open and wol operations must be
performed under the rtnl lock to prevent conflicts with ongoing ndo
operations.
Fixes: b71af04676e9 ("sh_eth: add more PM methods")
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 8887b8921009..5fc8027c92c7 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -3494,10 +3494,12 @@ static int sh_eth_suspend(struct device *dev) netif_device_detach(ndev); + rtnl_lock(); if (mdp->wol_enabled) ret = sh_eth_wol_setup(ndev); else ret = sh_eth_close(ndev); + rtnl_unlock(); return ret; } @@ -3511,10 +3513,12 @@ static int sh_eth_resume(struct device *dev) if (!netif_running(ndev)) return 0; + rtnl_lock(); if (mdp->wol_enabled) ret = sh_eth_wol_restore(ndev); else ret = sh_eth_open(ndev); + rtnl_unlock(); if (ret < 0) return ret; |