From: Tejun Heo <tj@kernel.org>
Date: Thu, 28 Feb 2013 01:04:29 +0000 (-0800)
Subject: mfd: convert to idr_alloc()
X-Git-Tag: v3.12-rc1~1325^2~72
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9f12563db1e079aaf9821104e6dfff4873b3f4b6;p=kernel%2Fkernel-generic.git

mfd: convert to idr_alloc()

Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 481a98a..2f12cc1 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -1091,15 +1091,14 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 	}
 	handle->pcr = pcr;
 
-	if (!idr_pre_get(&rtsx_pci_idr, GFP_KERNEL)) {
-		ret = -ENOMEM;
-		goto free_handle;
-	}
-
+	idr_preload(GFP_KERNEL);
 	spin_lock(&rtsx_pci_lock);
-	ret = idr_get_new(&rtsx_pci_idr, pcr, &pcr->id);
+	ret = idr_alloc(&rtsx_pci_idr, pcr, 0, 0, GFP_NOWAIT);
+	if (ret >= 0)
+		pcr->id = ret;
 	spin_unlock(&rtsx_pci_lock);
-	if (ret)
+	idr_preload_end();
+	if (ret < 0)
 		goto free_handle;
 
 	pcr->pci = pcidev;