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Commit 638a1a01 authored by Sawan Chandak's avatar Sawan Chandak Committed by Christoph Hellwig
Browse files

qla2xxx: Delay driver unload if there is any pending activity going on. 



Signed-off-by: default avatarSawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: default avatarSaurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 7c6300e3

drivers/scsi/qla2xxx/qla_os.c

+24 −0
Original line number Diff line number Diff line
@@ -843,6 +843,28 @@ qla2x00_wait_for_hba_online(scsi_qla_host_t *vha) 
	return (return_status);

}



/*

 * 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
@@ -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))