linux-kernel - [PATCH 09/11] kasan: add missing annotation for start

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Message-Id: <1eca01a2537e0500f4f31c335edfecf0a10bd294.1581282103.git.jbi.octave@gmail.com>
Date:   Sun,  9 Feb 2020 22:48:07 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     boqun.feng@...il.com
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kasan-dev@...glegroups.com, akpm@...ux-foundation.org,
        dvyukov@...gle.com, glider@...gle.com, aryabinin@...tuozzo.com,
        Jules Irenge <jbi.octave@...il.com>
Subject: [PATCH 09/11] kasan: add missing annotation for start_report()

Sparse reports a warning at start_report()

warning: context imbalance in start_report() - wrong count at exit

The root cause is a missing annotation at start_report()

Add the missing annotation __acquires(&report_lock)

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 mm/kasan/report.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 5ef9f24f566b..5451624c4e09 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -77,7 +77,7 @@ static void print_error_description(struct kasan_access_info *info)
 
 static DEFINE_SPINLOCK(report_lock);
 
-static void start_report(unsigned long *flags)
+static void start_report(unsigned long *flags) __acquires(&report_lock)
 {
 	/*
 	 * Make sure we don't end up in loop.
-- 
2.24.1