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authorBrian King <brking@linux.vnet.ibm.com>2007-03-29 12:43:17 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-04-01 11:17:22 -0500
commit24d6f2b50bd34d0da540a9e6f71c4b6ab25f4b93 (patch)
tree0242527fe42d4d03c899ce2ef5798b072b9309d1 /drivers/scsi
parentb0692dd4d7e90ce5cf1241731c6e80118402e3b4 (diff)
[SCSI] ipr: Fix for oops following SATA request sense
This patch fixes a problem discovered on a system with some bad SATA devices attached. If a command to a SATAPI device times out and the device gets reset as part of error recovery, its possible that ipr will set err_mask to indicate a device error has occurred. If this happens, a request sense will get issued by libata. Since scsi core thinks this scsi command is now completed, because the device reset handler completed successfully, scsi core will free the associated scsi command, which may cause an oops when that request sense is completed later by ipr. This patch ensures that any commands that get aborted as a result of a device reset set err_mask appropriately so that the request sense does not get sent. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ipr.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 44ce9f5218a..fc1171c7def 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -3846,6 +3846,8 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
if (ipr_cmd->scsi_cmd)
ipr_cmd->done = ipr_scsi_eh_done;
+ if (ipr_cmd->qc)
+ ipr_cmd->done = ipr_sata_eh_done;
if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;