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| author | Tejun Heo <tj@kernel.org> | 2013-02-27 17:04:03 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-27 19:10:15 -0800 |
| commit | 69ee266b4c890aea7505388c4e394f5757166531 (patch) | |
| tree | a135b37603b98044258d27dc4f5951983bc33a17 /drivers/dma/dmaengine.c | |
| parent | 615f2e5c531bc57d5a190f321d697988e950ae4d (diff) | |
| download | op-kernel-dev-69ee266b4c890aea7505388c4e394f5757166531.zip op-kernel-dev-69ee266b4c890aea7505388c4e394f5757166531.tar.gz | |
dmaengine: convert to idr_alloc()
Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Dan Williams <djbw@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 242b8c0..b2728d6 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; } /** |
