usb: usbip: Use DEFINE_SPINLOCK() for spinlock

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

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201223141431.835-1-zhengyongjun3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index c1c0bbc9f8b17a6e18f681dddc9937eb02a87778..77a5b3f8736af1e760a807894da0f5b2a0c9cbbb 100644 (file)
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -23,7 +23,7 @@ struct kmem_cache *stub_priv_cache;
  */
 #define MAX_BUSID 16
 static struct bus_id_priv busid_table[MAX_BUSID];
-static spinlock_t busid_table_lock;
+static DEFINE_SPINLOCK(busid_table_lock);
 
 static void init_busid_table(void)
 {
@@ -35,8 +35,6 @@ static void init_busid_table(void)
         */
        memset(busid_table, 0, sizeof(busid_table));
 
-       spin_lock_init(&busid_table_lock);
-
        for (i = 0; i < MAX_BUSID; i++)
                spin_lock_init(&busid_table[i].busid_lock);
 }