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[SCSI] ipr: PCI error recovery fix 

Since the pci_block_user_cfg_access API was modified to track
block/unblocks, it was discovered that the ipr driver had a
path through its code (in PCI error recovery) which would unblock
when not previously blocked.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Brian King 2007-01-23 11:25:37 -06:00 committed by James Bottomley
parent 7dce0e1c84
commit e619e1a7cb
1 changed files with 19 additions and 2 deletions
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21
drivers/scsi/ipr.c
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@ -6308,7 +6308,6 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
int rc;
ENTER;
pci_unblock_user_cfg_access(ioa_cfg->pdev);
rc = pci_restore_state(ioa_cfg->pdev);
if (rc != PCIBIOS_SUCCESSFUL) {
@ -6348,6 +6347,24 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
return IPR_RC_JOB_CONTINUE;
}
/**
* ipr_reset_bist_done - BIST has completed on the adapter.
* @ipr_cmd: ipr command struct
*
* Description: Unblock config space and resume the reset process.
*
* Return value:
* IPR_RC_JOB_CONTINUE
**/
static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
{
ENTER;
pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
ipr_cmd->job_step = ipr_reset_restore_cfg_space;
LEAVE;
return IPR_RC_JOB_CONTINUE;
}
/**
* ipr_reset_start_bist - Run BIST on the adapter.
* @ipr_cmd: ipr command struct
@ -6370,7 +6387,7 @@ static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
rc = IPR_RC_JOB_CONTINUE;
} else {
ipr_cmd->job_step = ipr_reset_restore_cfg_space;
ipr_cmd->job_step = ipr_reset_bist_done;
ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
rc = IPR_RC_JOB_RETURN;
}