V4L/DVB (8776): radio: replace video_exclusive_open/release

[linux-2.6-omap-h63xx.git] / drivers / media / radio / radio-maxiradio.c

diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 0cc6fcb041fd9773c56088ed50de1406f8030a27..263ef8b02fd8317c2edc2f37e37d09582620493b 100644 (file)
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -85,6 +85,7 @@ static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
 static int radio_nr = -1;
 module_param(radio_nr, int, 0);
 
+static unsigned long in_use;
 
 #define FREQ_LO                 50*16000
 #define FREQ_HI                150*16000
@@ -99,10 +100,21 @@ module_param(radio_nr, int, 0);
 #define BITS2FREQ(x)   ((x) * FREQ_STEP - FREQ_IF)
 
 
+static int maxiradio_exclusive_open(struct inode *inode, struct file *file)
+{
+       return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
+}
+
+static int maxiradio_exclusive_release(struct inode *inode, struct file *file)
+{
+       clear_bit(0, &in_use);
+       return 0;
+}
+
 static const struct file_operations maxiradio_fops = {
        .owner          = THIS_MODULE,
-       .open           = video_exclusive_open,
-       .release        = video_exclusive_release,
+       .open           = maxiradio_exclusive_open,
+       .release        = maxiradio_exclusive_release,
        .ioctl          = video_ioctl2,
 #ifdef CONFIG_COMPAT
        .compat_ioctl   = v4l_compat_ioctl32,