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| author | Jia-Ju Bai <baijiaju1990@163.com> | 2017-06-15 02:35:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-15 06:45:22 +0300 |
| commit | 640f93cc6ea7327588be3cc0849d1342aac0393a (patch) | |
| tree | 3136ed9256db392079abe637e3a386cb103c5933 /include/linux/dma-iommu.h | |
| parent | 849a44de91636c24cea799cb8ad8c36433feb913 (diff) | |
| download | linux-640f93cc6ea7327588be3cc0849d1342aac0393a.tar.xz | |
i40e: Fix a sleep-in-atomic bug
The driver may sleep under a spin lock, and the function call path is:
i40e_ndo_set_vf_port_vlan (acquire the lock by spin_lock_bh)
i40e_vsi_remove_pvid
i40e_vlan_stripping_disable
i40e_aq_update_vsi_params
i40e_asq_send_command
mutex_lock --> may sleep
To fixed it, the spin lock is released before "i40e_vsi_remove_pvid", and
the lock is acquired again after this function.
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/dma-iommu.h')
0 files changed, 0 insertions, 0 deletions