diff options
authorTejun Heo <>2010-12-03 15:19:13 +0100
committerJeff Garzik <>2010-12-24 13:32:07 -0500
commit687a993339c4f3a63654746230da3aab8bbdbffd (patch)
parent90a8a73c06cc32b609a880d48449d7083327e11a (diff)
libata-sff: fix HSM_ST_ERR handling in __ata_sff_port_intr()
While separating out BMDMA irq handler from SFF, commit c3b28894 (libata-sff: separate out BMDMA irq handler) incorrectly made __ata_sff_port_intr() consider an IRQ to be an idle one if the host state was transitioned to HSM_ST_ERR by ata_bmdma_port_intr(). This makes BMDMA drivers ignore IRQs reporting host bus error which leads to timeouts instead of triggering EH immediately. Fix it by making __ata_sff_port_intr() consider the IRQ to be an idle one iff the state is HSM_ST_IDLE. This is equivalent to adding HSM_ST_ERR to the "break"ing case but less error-prone. Signed-off-by: Tejun Heo <> Reported-by: Antonio Toma <> Cc: Signed-off-by: Jeff Garzik <>
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index d05387d1e14b..484697fef386 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -1532,11 +1532,10 @@ static unsigned int __ata_sff_port_intr(struct ata_port *ap,
if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
return ata_sff_idle_irq(ap);
- case HSM_ST:
- case HSM_ST_LAST:
- break;
- default:
+ case HSM_ST_IDLE:
return ata_sff_idle_irq(ap);
+ default:
+ break;
/* check main status, clearing INTRQ if needed */