[PATCH 47/62] scsi/lpfc: convert to idr_alloc()

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Convert to the much saner new idr interface.

Only compile tested.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: James Smart <james.smart@xxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
This patch depends on an earlier idr changes and I think it would be
best to route these together through -mm.  Please holler if there's
any objection.  Thanks.

 drivers/scsi/lpfc/lpfc_init.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 89ad558..7de4ef14 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3165,14 +3165,10 @@ destroy_port(struct lpfc_vport *vport)
 int
 lpfc_get_instance(void)
 {
-	int instance = 0;
-
-	/* Assign an unused number */
-	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
-		return -1;
-	if (idr_get_new(&lpfc_hba_index, NULL, &instance))
-		return -1;
-	return instance;
+	int ret;
+
+	ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
+	return ret < 0 ? -1 : ret;
 }
 
 /**
-- 
1.8.1

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