From e5a340f770278f4de42e8bac19f2ebeb77ddfae4 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Mon, 28 Oct 2019 09:06:46 +0200 Subject: [PATCH] intel_th: msu: Fix an uninitialized mutex Commit 615c164da0eb ("intel_th: msu: Introduce buffer interface") added a mutex that it forgot to initialize, resulting in a lockdep splat. Fix that by initializing the mutex statically. Signed-off-by: Alexander Shishkin Reviewed-by: Andy Shevchenko Fixes: 615c164da0eb ("intel_th: msu: Introduce buffer interface") Link: https://lore.kernel.org/r/20191028070651.9770-3-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/intel_th/msu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index fc9f15f..5102102 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -164,7 +164,7 @@ struct msc { }; static LIST_HEAD(msu_buffer_list); -static struct mutex msu_buffer_mutex; +static DEFINE_MUTEX(msu_buffer_mutex); /** * struct msu_buffer_entry - internal MSU buffer bookkeeping -- 2.7.4