linux-kernel - [PATCH 4/4] hibernate: fix disk and module leak on successfull resume

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Message-Id: <1454338315-13465-5-git-send-email-roman.penyaev@profitbricks.com>
Date:	Mon,  1 Feb 2016 15:51:55 +0100
From:	Roman Pen <roman.penyaev@...fitbricks.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	Roman Pen <roman.penyaev@...fitbricks.com>,
	Gi-Oh Kim <gi-oh.kim@...fitbricks.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] hibernate: fix disk and module leak on successfull resume

Do not forget to put the disk back.

Signed-off-by: Roman Pen <roman.penyaev@...fitbricks.com>
Cc: Gi-Oh Kim <gi-oh.kim@...fitbricks.com>
Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: Len Brown <len.brown@...el.com>
Cc: Pavel Machek <pavel@....cz>
Cc: linux-pm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 kernel/power/hibernate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index b7342a2..1f53dc2 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -785,8 +785,11 @@ static int software_resume(void)
 	 */
 	if (isdigit(resume_file[0]) && resume_wait) {
 		int partno;
-		while (!get_gendisk(swsusp_resume_device, &partno))
+		struct gendisk *disk;
+
+		while (!(disk = get_gendisk(swsusp_resume_device, &partno)))
 			msleep(10);
+		put_gendisk(disk);
 	}
 
 	if (!swsusp_resume_device) {
-- 
2.6.2