diff options
| author | Sukadev Bhattiprolu <sukadev@linux.ibm.com> | 2021-09-08 09:58:20 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-22 12:26:42 +0200 |
| commit | 235f782d5e3bb18ffb8726873b2525b9eb9d60a7 (patch) | |
| tree | d4831f8fc4328759e9a4b5343cdf39e1524a8836 /drivers/net/ethernet/ibm | |
| parent | d3939844ebdc82cdaac3f6664c0f2b25b6ec7df4 (diff) | |
ibmvnic: check failover_pending in login response
commit 273c29e944bda9a20a30c26cfc34c9a3f363280b upstream.
If a failover occurs before a login response is received, the login
response buffer maybe undefined. Check that there was no failover
before accessing the login response buffer.
Fixes: 032c5e82847a ("Driver for IBM System i/p VNIC protocol")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/ibm')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index ecfe588f330e..cfe7229593ea 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -4277,6 +4277,14 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq, return 0; } + if (adapter->failover_pending) { + adapter->init_done_rc = -EAGAIN; + netdev_dbg(netdev, "Failover pending, ignoring login response\n"); + complete(&adapter->init_done); + /* login response buffer will be released on reset */ + return 0; + } + netdev->mtu = adapter->req_mtu - ETH_HLEN; netdev_dbg(adapter->netdev, "Login Response Buffer:\n"); |