From b5d26eab4dfba37f188ce66ba356e2cc30a4000a Mon Sep 17 00:00:00 2001
From: Hirokazu Honda <hiroh@chromium.org>
Date: Thu, 3 Nov 2022 18:50:37 +0530
Subject: libcamera: base: semaphore: Apply clang thread safety annotation

This annotates member functions and variables of Semaphore by
clang thread safety annotations.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
---
 src/libcamera/base/semaphore.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/libcamera/base/semaphore.cpp b/src/libcamera/base/semaphore.cpp
index 4fe30293..6217e386 100644
--- a/src/libcamera/base/semaphore.cpp
+++ b/src/libcamera/base/semaphore.cpp
@@ -56,7 +56,9 @@ unsigned int Semaphore::available()
 void Semaphore::acquire(unsigned int n)
 {
 	MutexLocker locker(mutex_);
-	cv_.wait(locker, [&] { return available_ >= n; });
+	cv_.wait(locker, [&]() LIBCAMERA_TSA_REQUIRES(mutex_) {
+		return available_ >= n;
+	});
 	available_ -= n;
 }
 
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