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authorTejun Heo <htejun@gmail.com>2008-04-23 11:48:36 (GMT)
committerJeff Garzik <jgarzik@redhat.com>2008-04-25 04:45:09 (GMT)
commit411cb3869afd91ed40e8f12df64cd9e315356305 (patch)
treedde48c3147d784d6ecfee093a1e6575291d6a177 /drivers/ata
parent458622fcdc5b316de8d74efd7e610803f0308c14 (diff)
downloadlinux-411cb3869afd91ed40e8f12df64cd9e315356305.tar.xz
libata: make WARN_ON conditions in ata_sff_hsm_move() more strict
WARN_ON()'s in ata_hsm_move() was too liberal and got triggerred when it shouldn't (e.g. hotplug events at the right moment). As the HSM only deals with device errors and state machine violations, make it check only against them. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Mark Lord <liml@rtr.ca> Cc: Albert Lee <albertcc@tw.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-sff.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 1549952..2ec65a8 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1208,7 +1208,7 @@ fsm_start:
DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n",
ap->print_id, qc->dev->devno, status);
- WARN_ON(qc->err_mask);
+ WARN_ON(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM));
ap->hsm_task_state = HSM_ST_IDLE;
@@ -1222,7 +1222,7 @@ fsm_start:
/* make sure qc->err_mask is available to
* know what's wrong and recover
*/
- WARN_ON(qc->err_mask == 0);
+ WARN_ON(!(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM)));
ap->hsm_task_state = HSM_ST_IDLE;