diff options
| author | Sawan Chandak <sawan.chandak@qlogic.com> | 2014-04-11 16:54:38 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-05-19 13:31:04 +0200 |
| commit | 638a1a01d36a1496244fb1367c5b79c6fcd62d3d (patch) | |
| tree | cf6099e476a848d0b4a3f44d4e7bb613aacab56a /drivers/scsi/qla2xxx | |
| parent | 7c6300e3941da8e84bf5faf1358bf3909c5ef97e (diff) | |
qla2xxx: Delay driver unload if there is any pending activity going on.
Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index d1a76a6da6e2..575404fbcbec 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -844,6 +844,28 @@ qla2x00_wait_for_hba_online(scsi_qla_host_t *vha) } /* + * qla2x00_wait_for_hba_ready + * Wait till the HBA is ready before doing driver unload + * + * Input: + * ha - pointer to host adapter structure + * + * Note: + * Does context switching-Release SPIN_LOCK + * (if any) before calling this routine. + * + */ +static void +qla2x00_wait_for_hba_ready(scsi_qla_host_t *vha) +{ + struct qla_hw_data *ha = vha->hw; + + while ((!(vha->flags.online) || ha->dpc_active || + ha->flags.mbox_busy)) + msleep(1000); +} + +/* * qla2x00_wait_for_reset_ready * Wait till the HBA is online after going through * <= MAX_RETRIES_OF_ISP_ABORT or @@ -3161,6 +3183,8 @@ qla2x00_remove_one(struct pci_dev *pdev) base_vha = pci_get_drvdata(pdev); ha = base_vha->hw; + qla2x00_wait_for_hba_ready(base_vha); + set_bit(UNLOADING, &base_vha->dpc_flags); if (IS_QLAFX00(ha)) |