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Date: Thu, 14 Feb 2019 21:08:09 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Yang Yingliang <yangyingliang@...wei.com>, Marc Zyngier <marc.zyngier@....com>, Sasha Levin <sashal@...nel.org> Subject: [PATCH AUTOSEL 4.20 31/77] irqchip/gic-v3-mbi: Fix uninitialized mbi_lock From: Yang Yingliang <yangyingliang@...wei.com> [ Upstream commit c530bb8a726a37811e9fb5d68cd6b5408173b545 ] 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@...wei.com> Signed-off-by: Marc Zyngier <marc.zyngier@....com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/irqchip/irq-gic-v3-mbi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c index ad70e7c416e3..fbfa7ff6deb1 100644 --- 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; -- 2.19.1
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