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authorAxel Lin <axel.lin@gmail.com>2011-07-19 23:32:28 -0400
committerDan Williams <dan.j.williams@intel.com>2011-08-04 01:25:39 -0400
commit21ef4b8b7a7d59a995bf44382de38c95587767d4 (patch)
treec658c556af756d7a7eec889810d185c7afca7088 /drivers/dma
parentd0b0c8c79b26a1f48e1e92a2c073655159e72b7c (diff)
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 @@
61#include <linux/slab.h> 61#include <linux/slab.h>
62 62
63static DEFINE_MUTEX(dma_list_mutex); 63static DEFINE_MUTEX(dma_list_mutex);
64static DEFINE_IDR(dma_idr);
64static LIST_HEAD(dma_device_list); 65static LIST_HEAD(dma_device_list);
65static long dmaengine_ref_count; 66static long dmaengine_ref_count;
66static struct idr dma_idr;
67 67
68/* --- sysfs implementation --- */ 68/* --- sysfs implementation --- */
69 69
@@ -1049,8 +1049,6 @@ EXPORT_SYMBOL_GPL(dma_run_dependencies);
1049 1049
1050static int __init dma_bus_init(void) 1050static int __init dma_bus_init(void)
1051{ 1051{
1052 idr_init(&dma_idr);
1053 mutex_init(&dma_list_mutex);
1054 return class_register(&dma_devclass); 1052 return class_register(&dma_devclass);
1055} 1053}
1056arch_initcall(dma_bus_init); 1054arch_initcall(dma_bus_init);