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authorAlexander Shishkin <alexander.shishkin@linux.intel.com>2019-10-28 09:06:46 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-04 15:01:23 +0100
commite5a340f770278f4de42e8bac19f2ebeb77ddfae4 (patch)
tree95ee45e307f7da8780e5d5fbf8cf68cf15bfb0a4 /drivers/hwtracing
parent87c0b9c79ec136ea76a14a88d675a746bc6a87f9 (diff)
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 <alexander.shishkin@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 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 <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/intel_th/msu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index fc9f15f36ad4..51021020fa3f 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