From patchwork Sun Feb 3 01:20:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [37/62] mtd: convert to idr_alloc() Date: Sat, 02 Feb 2013 15:20:38 -0000 From: Tejun Heo X-Patchwork-Id: 217720 Message-Id: <1359854463-2538-38-git-send-email-tj@kernel.org> To: akpm@linux-foundation.org Cc: axboe@kernel.dk, skinsbursky@parallels.com, rusty@rustcorp.com.au, jmorris@namei.org, linux-kernel@vger.kernel.org, bfields@fieldses.org, linux-mtd@lists.infradead.org, ebiederm@xmission.com, Tejun Heo , David Woodhouse Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org Tested-by: Ezequiel Garcia --- 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/mtd/mtdcore.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index ec794a7..61d5f56 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -349,13 +349,8 @@ int add_mtd_device(struct mtd_info *mtd) BUG_ON(mtd->writesize == 0); mutex_lock(&mtd_table_mutex); - do { - if (!idr_pre_get(&mtd_idr, GFP_KERNEL)) - goto fail_locked; - error = idr_get_new(&mtd_idr, mtd, &i); - } while (error == -EAGAIN); - - if (error) + i = idr_alloc(&mtd_idr, mtd, 0, 0, GFP_KERNEL); + if (i < 0) goto fail_locked; mtd->index = i;