Simplify ida index allocation and removal by
using the ida_simple_* helper functions.

Signed-off-by: Lee Duncan <ldun...@suse.com>
---
 drivers/block/rsxx/core.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index d8b2488aaade..d2279a759b2e 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -58,7 +58,6 @@ MODULE_PARM_DESC(sync_start, "On by Default: Driver load will 
not complete "
                             "until the card startup has completed.");
 
 static DEFINE_IDA(rsxx_disk_ida);
-static DEFINE_SPINLOCK(rsxx_ida_lock);
 
 /* --------------------Debugfs Setup ------------------- */
 
@@ -774,19 +773,10 @@ static int rsxx_pci_probe(struct pci_dev *dev,
        card->dev = dev;
        pci_set_drvdata(dev, card);
 
-       do {
-               if (!ida_pre_get(&rsxx_disk_ida, GFP_KERNEL)) {
-                       st = -ENOMEM;
-                       goto failed_ida_get;
-               }
-
-               spin_lock(&rsxx_ida_lock);
-               st = ida_get_new(&rsxx_disk_ida, &card->disk_id);
-               spin_unlock(&rsxx_ida_lock);
-       } while (st == -EAGAIN);
-
-       if (st)
+       st = ida_simple_get(&rsxx_disk_ida, 0, 0, GFP_KERNEL);
+       if (st < 0)
                goto failed_ida_get;
+       card->disk_id = st;
 
        st = pci_enable_device(dev);
        if (st)
@@ -987,9 +977,7 @@ failed_request_regions:
 failed_dma_mask:
        pci_disable_device(dev);
 failed_enable:
-       spin_lock(&rsxx_ida_lock);
-       ida_remove(&rsxx_disk_ida, card->disk_id);
-       spin_unlock(&rsxx_ida_lock);
+       ida_simple_remove(&rsxx_disk_ida, card->disk_id);
 failed_ida_get:
        kfree(card);
 
-- 
2.1.4

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