From: Loic Pefferkorn <loic@loicp.eu>
Date: Wed, 3 Sep 2014 20:23:12 +0000 (+0200)
Subject: staging: goldfish: document spinlock usage
X-Git-Tag: v3.18-rc1~130^2~795
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b61f085eb63bf1a304d7be5fc175cf478848bf2;p=karo-tx-linux.git

staging: goldfish: document spinlock usage

Coding style: document spinlock usage

Signed-off-by: Loic Pefferkorn <loic@loicp.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/goldfish/goldfish_audio.c b/drivers/staging/goldfish/goldfish_audio.c
index 23a206d59790..b360d07564b1 100644
--- a/drivers/staging/goldfish/goldfish_audio.c
+++ b/drivers/staging/goldfish/goldfish_audio.c
@@ -36,6 +36,7 @@ MODULE_VERSION("1.0");
 struct goldfish_audio {
 	char __iomem *reg_base;
 	int irq;
+	/* lock protects access to buffer_status and to device registers */
 	spinlock_t lock;
 	wait_queue_head_t wait;