From 6d0500df5b37c94b779ac2c3f522ff917e039f99 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 10 Aug 2006 16:59:05 +0900 Subject: [PATCH] [PATCH] [libata] Kill 'count' var in ata_device_add() Eliminate redundant loop variable 'count' Signed-off-by: Jeff Garzik Signed-off-by: Tejun Heo --- drivers/scsi/libata-core.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 3aa477a3302f..38fc75d6b39c 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -5403,7 +5403,7 @@ void ata_host_set_init(struct ata_host_set *host_set, */ int ata_device_add(const struct ata_probe_ent *ent) { - unsigned int count = 0, i; + unsigned int i; struct device *dev = ent->dev; struct ata_host_set *host_set; int rc; @@ -5422,7 +5422,7 @@ int ata_device_add(const struct ata_probe_ent *ent) host_set->private_data = ent->private_data; /* register each port bound to this device */ - for (i = 0; i < ent->n_ports; i++) { + for (i = 0; i < host_set->n_ports; i++) { struct ata_port *ap; unsigned long xfer_mode_mask; @@ -5448,12 +5448,8 @@ int ata_device_add(const struct ata_probe_ent *ent) ata_chk_status(ap); host_set->ops->irq_clear(ap); ata_eh_freeze_port(ap); /* freeze port before requesting IRQ */ - count++; } - if (!count) - goto err_free_ret; - /* obtain irq, that is shared between channels */ rc = request_irq(ent->irq, ent->port_ops->irq_handler, ent->irq_flags, DRV_NAME, host_set); @@ -5465,13 +5461,11 @@ int ata_device_add(const struct ata_probe_ent *ent) /* perform each probe synchronously */ DPRINTK("probe begin\n"); - for (i = 0; i < count; i++) { - struct ata_port *ap; + for (i = 0; i < host_set->n_ports; i++) { + struct ata_port *ap = host_set->ports[i]; u32 scontrol; int rc; - ap = host_set->ports[i]; - /* init sata_spd_limit to the current value */ if (sata_scr_read(ap, SCR_CONTROL, &scontrol) == 0) { int spd = (scontrol >> 4) & 0xf; @@ -5527,7 +5521,7 @@ int ata_device_add(const struct ata_probe_ent *ent) /* probes are done, now scan each port's disk(s) */ DPRINTK("host probe begin\n"); - for (i = 0; i < count; i++) { + for (i = 0; i < host_set->n_ports; i++) { struct ata_port *ap = host_set->ports[i]; ata_scsi_scan_host(ap); @@ -5539,14 +5533,14 @@ int ata_device_add(const struct ata_probe_ent *ent) return ent->n_ports; /* success */ err_out: - for (i = 0; i < count; i++) { + for (i = 0; i < host_set->n_ports; i++) { struct ata_port *ap = host_set->ports[i]; if (ap) { ap->ops->port_stop(ap); scsi_host_put(ap->host); } } -err_free_ret: + kfree(host_set); VPRINTK("EXIT, returning 0\n"); return 0; -- 2.30.2