From 14709eca1644316f1fb628e14525e75dac44c591 Mon Sep 17 00:00:00 2001
From: Douglas Schilling Landgraf <dougsland@gmail.com>
Date: Wed, 13 Feb 2008 23:51:26 -0200
Subject: radio-si470x: Add kernel validation to mutex

From: Douglas Schilling Landgraf <dougsland@gmail.com>

Added kernel validation to support mutex/semaphore. (kernel < 2.6.16)

Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com>
---
 linux/drivers/media/radio/radio-si470x.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'linux')

diff --git a/linux/drivers/media/radio/radio-si470x.c b/linux/drivers/media/radio/radio-si470x.c
index 772c3a126..d7fe70a00 100644
--- a/linux/drivers/media/radio/radio-si470x.c
+++ b/linux/drivers/media/radio/radio-si470x.c
@@ -114,7 +114,9 @@
 #include <linux/version.h>
 #include "compat.h"
 #include <linux/videodev2.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 16)
 #include <linux/mutex.h>
+#endif
 #include <media/v4l2-common.h>
 #include <media/rds.h>
 #include <asm/unaligned.h>
@@ -432,7 +434,11 @@ struct si470x_device {
 	/* RDS receive buffer */
 	struct delayed_work work;
 	wait_queue_head_t read_queue;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 16)
 	struct mutex lock;		/* buffer locking */
+#else
+	struct semaphore lock;		/* buffer locking */
+#endif
 	unsigned char *buffer;		/* size is always multiple of three */
 	unsigned int buf_size;
 	unsigned int rd_index;
-- 
cgit v1.2.3