irqchip/gic-v3-mbi: Fix uninitialized mbi_lock

The mbi_lock mutex is left uninitialized, so let's use DEFINE_MUTEX
to initialize it statically.

Fixes: 505287525c24d ("irqchip/gic-v3: Add support for Message Based Interrupts as an MSI controller")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c
index ad70e7c416e3014ca95d76e7e058cdec986c17ab..fbfa7ff6deb1644aa1fbec858a0567ada0d7cb44 100644 (file)
--- a/drivers/irqchip/irq-gic-v3-mbi.c
+++ b/drivers/irqchip/irq-gic-v3-mbi.c
@@ -24,7 +24,7 @@ struct mbi_range {
        unsigned long           *bm;
 };
 
-static struct mutex            mbi_lock;
+static DEFINE_MUTEX(mbi_lock);
 static phys_addr_t             mbi_phys_base;
 static struct mbi_range                *mbi_ranges;
 static unsigned int            mbi_range_nr;