[PATCH -next 1/2] drivers: most: use DEFINE_SPINLOCK() for spinlock

[PATCH -next 1/2] drivers: most: use DEFINE_SPINLOCK() for spinlock

[Shixin Liu]

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
---
 drivers/most/most_cdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/most/most_cdev.c b/drivers/most/most_cdev.c
index 044880760b58..8b69cf3ca60b 100644
--- a/drivers/most/most_cdev.c
+++ b/drivers/most/most_cdev.c
@@ -45,7 +45,7 @@ struct comp_channel {
 
 #define to_channel(d) container_of(d, struct comp_channel, cdev)
 static struct list_head channel_list;
-static spinlock_t ch_list_lock;
+static DEFINE_SPINLOCK(ch_list_lock);
 
 static inline bool ch_has_mbo(struct comp_channel *c)
 {
@@ -495,7 +495,6 @@ static int __init mod_init(void)
 		return PTR_ERR(comp.class);
 
 	INIT_LIST_HEAD(&channel_list);
-	spin_lock_init(&ch_list_lock);
 	ida_init(&comp.minor_id);
 
 	err = alloc_chrdev_region(&comp.devno, 0, CHRDEV_REGION_SIZE, "cdev");
-- 
2.25.1

[PATCH -next 2/2] drivers: most: use LIST_HEAD() for list_head

[Shixin Liu]

There's no need to declare a list and then init it manually,
just use the LIST_HEAD() macro.

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
---
 drivers/most/most_cdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/most/most_cdev.c b/drivers/most/most_cdev.c
index 8b69cf3ca60b..8908b9363a96 100644
--- a/drivers/most/most_cdev.c
+++ b/drivers/most/most_cdev.c
@@ -44,7 +44,7 @@ struct comp_channel {
 };
 
 #define to_channel(d) container_of(d, struct comp_channel, cdev)
-static struct list_head channel_list;
+static LIST_HEAD(channel_list);
 static DEFINE_SPINLOCK(ch_list_lock);
 
 static inline bool ch_has_mbo(struct comp_channel *c)
@@ -494,7 +494,6 @@ static int __init mod_init(void)
 	if (IS_ERR(comp.class))
 		return PTR_ERR(comp.class);
 
-	INIT_LIST_HEAD(&channel_list);
 	ida_init(&comp.minor_id);
 
 	err = alloc_chrdev_region(&comp.devno, 0, CHRDEV_REGION_SIZE, "cdev");
-- 
2.25.1