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staging: vc04_services: use DEFINE_MUTEX() for mutex lock

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

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20201224132528.31558-1-zhengyongjun3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zheng Yongjun 2020-12-24 21:25:28 +08:00 committed by Greg Kroah-Hartman
parent 6abeae2adc
commit 1790f2be41
1 changed files with 1 additions and 2 deletions
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3
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
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@ -12,13 +12,12 @@ static int g_connected;
static int g_num_deferred_callbacks; static int g_num_deferred_callbacks;
static VCHIQ_CONNECTED_CALLBACK_T g_deferred_callback[MAX_CALLBACKS]; static VCHIQ_CONNECTED_CALLBACK_T g_deferred_callback[MAX_CALLBACKS];
static int g_once_init; static int g_once_init;
static struct mutex g_connected_mutex; static DEFINE_MUTEX(g_connected_mutex);
/* Function to initialize our lock */ /* Function to initialize our lock */
static void connected_init(void) static void connected_init(void)
{ {
if (!g_once_init) { if (!g_once_init) {
mutex_init(&g_connected_mutex);
g_once_init = 1; g_once_init = 1;
} }
} }