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| author | Axel Lin <axel.lin@gmail.com> | 2011-07-20 11:32:28 +0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-08-03 22:25:39 -0700 |
| commit | 21ef4b8b7a7d59a995bf44382de38c95587767d4 (patch) | |
| tree | c658c556af756d7a7eec889810d185c7afca7088 /drivers | |
| parent | d0b0c8c79b26a1f48e1e92a2c073655159e72b7c (diff) | |
| download | linux-3.10-21ef4b8b7a7d59a995bf44382de38c95587767d4.tar.gz linux-3.10-21ef4b8b7a7d59a995bf44382de38c95587767d4.tar.bz2 linux-3.10-21ef4b8b7a7d59a995bf44382de38c95587767d4.zip | |
dmaengine: use DEFINE_IDR for static initialization
We could use DEFINE_IDR for statically allocated idr
that allow us to save a few lines of code.
And also remove unneeded mutex_init() for dma_list_mutex, as
dma_list_mutex is initialized automatically by DEFINE_MUTEX().
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/dmaengine.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 8bcb15fb959..bc11eebff44 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -61,9 +61,9 @@ #include <linux/slab.h> static DEFINE_MUTEX(dma_list_mutex); +static DEFINE_IDR(dma_idr); static LIST_HEAD(dma_device_list); static long dmaengine_ref_count; -static struct idr dma_idr; /* --- sysfs implementation --- */ @@ -1049,8 +1049,6 @@ EXPORT_SYMBOL_GPL(dma_run_dependencies); static int __init dma_bus_init(void) { - idr_init(&dma_idr); - mutex_init(&dma_list_mutex); return class_register(&dma_devclass); } arch_initcall(dma_bus_init); |