From 2c95ee6042b16206d58634ae9f5b69e7401a8219 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 20 Feb 2013 13:16:11 +1100 Subject: [PATCH] dmaengine: convert to idr_alloc() Convert to the much saner new idr interface. Only compile tested. Signed-off-by: Tejun Heo Cc: Dan Williams Signed-off-by: Andrew Morton --- drivers/dma/dmaengine.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 242b8c0a3de8..b2728d6ba2fd 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -686,18 +686,14 @@ static int get_dma_id(struct dma_device *device) { int rc; - idr_retry: - if (!idr_pre_get(&dma_idr, GFP_KERNEL)) - return -ENOMEM; mutex_lock(&dma_list_mutex); - rc = idr_get_new(&dma_idr, NULL, &device->dev_id); - mutex_unlock(&dma_list_mutex); - if (rc == -EAGAIN) - goto idr_retry; - else if (rc != 0) - return rc; - return 0; + rc = idr_alloc(&dma_idr, NULL, 0, 0, GFP_KERNEL); + if (rc >= 0) + device->dev_id = rc; + + mutex_unlock(&dma_list_mutex); + return rc < 0 ? rc : 0; } /** -- 2.39.5