diff options
| author | Tejun Heo <tj@kernel.org> | 2010-01-19 10:46:32 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-03-01 14:58:44 -0500 |
| commit | d88ec2e5c13261cf317b46832a7de216f6d06537 (patch) | |
| tree | da307bdad7bfa99c87857ac228896696170bb06f /drivers/ata/libata-sff.c | |
| parent | 88e8201e67aace3d86de9e75122ea525f0e7248e (diff) | |
| download | kernel_samsung_smdk4412-d88ec2e5c13261cf317b46832a7de216f6d06537.zip kernel_samsung_smdk4412-d88ec2e5c13261cf317b46832a7de216f6d06537.tar.gz kernel_samsung_smdk4412-d88ec2e5c13261cf317b46832a7de216f6d06537.tar.bz2 | |
libata: cleanup ata_sff_interrupt()
host->ports[i] is never NULL if i < host->n_ports and non-NULL return
from ata_qc_from_tag() guarantees that the returned qc is active.
Drop unnecessary tests.
Superflous () dropped as suggested by Sergei.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-sff.c')
| -rw-r--r-- | drivers/ata/libata-sff.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 730ef3c..c62ed13 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1770,18 +1770,15 @@ irqreturn_t ata_sff_interrupt(int irq, void *dev_instance) spin_lock_irqsave(&host->lock, flags); for (i = 0; i < host->n_ports; i++) { - struct ata_port *ap; + struct ata_port *ap = host->ports[i]; + struct ata_queued_cmd *qc; - ap = host->ports[i]; - if (ap && - !(ap->flags & ATA_FLAG_DISABLED)) { - struct ata_queued_cmd *qc; + if (unlikely(ap->flags & ATA_FLAG_DISABLED)) + continue; - qc = ata_qc_from_tag(ap, ap->link.active_tag); - if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)) && - (qc->flags & ATA_QCFLAG_ACTIVE)) - handled |= ata_sff_host_intr(ap, qc); - } + qc = ata_qc_from_tag(ap, ap->link.active_tag); + if (qc && !(qc->tf.flags & ATA_TFLAG_POLLING)) + handled |= ata_sff_host_intr(ap, qc); } spin_unlock_irqrestore(&host->lock, flags); |