linux-kernel - [PATCH V2 linux-next] jffs2: fix sparse warning: unexpected unlock

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Date:	Sun, 28 Sep 2014 21:26:32 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	linux-sparse@...r.kernel.org,
	Josh Triplett <josh@...htriplett.org>,
	Brian Norris <computersforpeace@...il.com>,
	Fabian Frederick <fabf@...net.be>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org
Subject: [PATCH V2 linux-next] jffs2: fix sparse warning: unexpected unlock

fs/jffs2/summary.c:846:5: warning: context imbalance in 'jffs2_sum_write_sumnode' - unexpected unlock

Suggested-by: Brian Norris <computersforpeace@...il.com>
Suggested-by: Josh Triplett <josh@...htriplett.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
V2: use __must_hold instead of __releases / __acquires
(suggested by Brian Norris and Josh Triplett)

 fs/jffs2/summary.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/jffs2/summary.c b/fs/jffs2/summary.c
index c522d09..bc53854 100644
--- a/fs/jffs2/summary.c
+++ b/fs/jffs2/summary.c
@@ -844,6 +844,7 @@ static int jffs2_sum_write_data(struct jffs2_sb_info *c, struct jffs2_eraseblock
 /* Write out summary information - called from jffs2_do_reserve_space */
 
 int jffs2_sum_write_sumnode(struct jffs2_sb_info *c)
+	__must_hold(&c->erase_completion_block)
 {
 	int datasize, infosize, padsize;
 	struct jffs2_eraseblock *jeb;
-- 
1.9.1

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