[PATCH -next] dma: idxd: use DEFINE_MUTEX (and mutex_init() had been too late)

[Zheng Yongjun]

Signed-off-by: Zheng Yongjun <zhengyongj...@huawei.com>
---
 drivers/dma/idxd/init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 0a4432b063b5..2297c93dd527 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -27,7 +27,7 @@ MODULE_AUTHOR("Intel Corporation");
 #define DRV_NAME "idxd"
 
 static struct idr idxd_idrs[IDXD_TYPE_MAX];
-static struct mutex idxd_idr_lock;
+static DEFINE_MUTEX(idxd_idr_lock);
 
 static struct pci_device_id idxd_pci_tbl[] = {
        /* DSA ver 1.0 platforms */
@@ -481,7 +481,6 @@ static int __init idxd_init_module(void)
        pr_info("%s: Intel(R) Accelerator Devices Driver %s\n",
                DRV_NAME, IDXD_DRIVER_VERSION);
 
-       mutex_init(&idxd_idr_lock);
        for (i = 0; i < IDXD_TYPE_MAX; i++)
                idr_init(&idxd_idrs[i]);
 
-- 
2.22.0