[PATCH 5.11 158/329] dma: idxd: use DEFINE_MUTEX() for mutex lock

[Greg Kroah-Hartman]

From: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>

[ Upstream commit e2fcd6e427c2fae92b366b24759f95d77b6f7bc7 ]

mutex lock can be initialized automatically with DEFINE_MUTEX()
rather than explicitly calling mutex_init().

Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
Acked-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Link: https://lore.kernel.org/r/20201224132254.30961-1-zhengyongjun3@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 ababd059da6f..d223242a34f4 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -31,7 +31,7 @@ MODULE_AUTHOR("Intel Corporation");
 bool support_enqcmd;
 
 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 */
@@ -543,7 +543,6 @@ static int __init idxd_init_module(void)
 	else
 		support_enqcmd = true;
 
-	mutex_init(&idxd_idr_lock);
 	for (i = 0; i < IDXD_TYPE_MAX; i++)
 		idr_init(&idxd_idrs[i]);
 
-- 
2.30.2