drivers: most: use DEFINE_SPINLOCK() for spinlock

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

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Link: https://lore.kernel.org/r/20210329094015.66942-1-liushixin2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/most/most_cdev.c b/drivers/most/most_cdev.c
index 044880760b584382fa247cde56d9cabd11cc6a8c..8b69cf3ca60b382360515f0624aed1d4195f50be 100644 (file)
--- 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");