gma500: Use DEFINE_SPINLOCK() for spinlock

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

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1617710114-48071-1-git-send-email-huangguobin4@huawei.com

diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c
index 56ef882..f07641d 100644 (file)
--- a/drivers/gpu/drm/gma500/power.c
+++ b/drivers/gpu/drm/gma500/power.c
@@ -36,7 +36,7 @@
 #include <linux/pm_runtime.h>
 
 static struct mutex power_mutex;       /* Serialize power ops */
-static spinlock_t power_ctrl_lock;     /* Serialize power claim */
+static DEFINE_SPINLOCK(power_ctrl_lock);       /* Serialize power claim */
 
 /**
  *     gma_power_init          -       initialise power manager
@@ -55,7 +55,6 @@ void gma_power_init(struct drm_device *dev)
        dev_priv->display_power = true; /* We start active */
        dev_priv->display_count = 0;    /* Currently no users */
        dev_priv->suspended = false;    /* And not suspended */
-       spin_lock_init(&power_ctrl_lock);
        mutex_init(&power_mutex);
 
        if (dev_priv->ops->init_pm)