From: Wei Yongjun <weiyj.lk@gmail.com>
Date: Mon, 25 Jul 2016 07:05:11 +0000 (+0000)
Subject: rtc: at91sam9: Fix missing spin_lock_init()
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b7b17633d866e79a192b6e616c644bb6f9301a3f;p=deliverable%2Flinux.git

rtc: at91sam9: Fix missing spin_lock_init()

The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---

diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 99732e6f8c3b..7418a763ce52 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -375,6 +375,7 @@ static int at91_rtc_probe(struct platform_device *pdev)
 	if (!rtc)
 		return -ENOMEM;
 
+	spin_lock_init(&rtc->lock);
 	rtc->irq = irq;
 
 	/* platform setup code should have handled this; sigh */