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authorAxel Lin <axel.lin@gmail.com>2011-07-20 11:32:28 +0800
committerDan Williams <dan.j.williams@intel.com>2011-08-03 22:25:39 -0700
commit21ef4b8b7a7d59a995bf44382de38c95587767d4 (patch)
treec658c556af756d7a7eec889810d185c7afca7088 /drivers/dma
parentd0b0c8c79b26a1f48e1e92a2c073655159e72b7c (diff)
downloadlinux-21ef4b8b7a7d59a995bf44382de38c95587767d4.tar.bz2
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/dma')
-rw-r--r--drivers/dma/dmaengine.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 8bcb15fb959d..bc11eebff44d 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);