diff options
Diffstat (limited to 'drivers/vfio/vfio_main.c')
| -rw-r--r-- | drivers/vfio/vfio_main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index 6222376ab6ab..ed538aebb0b8 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -407,6 +407,13 @@ void vfio_unregister_group_dev(struct vfio_device *device) vfio_device_group_unregister(device); /* + * Remove debugfs before device_del(), which releases devres. Some + * debugfs entries are created with debugfs_create_devm_seqfile() and + * therefore rely on devres-managed inode private data. + */ + vfio_device_debugfs_exit(device); + + /* * Balances vfio_device_add() in register path, also prevents * new device opened by userspace in the cdev path. */ @@ -435,7 +442,6 @@ void vfio_unregister_group_dev(struct vfio_device *device) } } - vfio_device_debugfs_exit(device); /* Balances vfio_device_set_group in register path */ vfio_device_remove_group(device); } @@ -858,7 +864,8 @@ int vfio_mig_get_next_state(struct vfio_device *device, * logical state, as per the above comment. */ *next_fsm = vfio_from_fsm_table[cur_fsm][new_fsm]; - while ((state_flags_table[*next_fsm] & device->migration_flags) != + while (*next_fsm != VFIO_DEVICE_STATE_ERROR && + (state_flags_table[*next_fsm] & device->migration_flags) != state_flags_table[*next_fsm]) *next_fsm = vfio_from_fsm_table[*next_fsm][new_fsm]; |