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| author | Edward Cree <ecree@solarflare.com> | 2017-06-20 13:08:51 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-20 15:40:00 -0400 |
| commit | 57f0c9cf58ff7fe479137ab847a886d0eed3ad1d (patch) | |
| tree | b51ba26f7cb76538a0261cb5577c66287b4880b3 /drivers/net | |
| parent | db833d40ad3263b2ee3b59a1ba168bb3cfed8137 (diff) | |
| download | linux-stable-57f0c9cf58ff7fe479137ab847a886d0eed3ad1d.tar.gz linux-stable-57f0c9cf58ff7fe479137ab847a886d0eed3ad1d.tar.bz2 linux-stable-57f0c9cf58ff7fe479137ab847a886d0eed3ad1d.zip | |
sfc: remove duplicate up_write on VF filter_sem
Somehow two copies of the line 'up_write(&vf->efx->filter_sem);' got into
efx_ef10_sriov_set_vf_vlan(). This would put the mutex in a bad state and
cause all subsequent down attempts to hang.
Fixes: 671b53eec2ed ("sfc: Ensure down_write(&filter_sem) and up_write() are matched before calling efx_net_open()")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10_sriov.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c index b7e4345c990d..019cef1d3cf7 100644 --- a/drivers/net/ethernet/sfc/ef10_sriov.c +++ b/drivers/net/ethernet/sfc/ef10_sriov.c @@ -661,8 +661,6 @@ restore_filters: up_write(&vf->efx->filter_sem); mutex_unlock(&vf->efx->mac_lock); - up_write(&vf->efx->filter_sem); - rc2 = efx_net_open(vf->efx->net_dev); if (rc2) goto reset_nic; |