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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-16 02:16:07 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-16 02:16:07 +0400 |
| commit | 2502991560dc8244dbe10e48473d85722c1e2ec1 (patch) | |
| tree | 63b1f3be2ed56ff06f1e8db709e4ce85d69c3add /drivers/media/radio/radio-trust.c | |
| parent | 7e69a8c4d06b7ecb874f571e82b715a9f79bc3c4 (diff) | |
| parent | a9ff8f6462635c8d9f8d64b7b10ddcea8404d77b (diff) | |
| download | linux-2502991560dc8244dbe10e48473d85722c1e2ec1.tar.xz | |
Merge branch 'fixes' into for-linus
Conflicts:
arch/arm/mach-versatile/core.c
Diffstat (limited to 'drivers/media/radio/radio-trust.c')
| -rw-r--r-- | drivers/media/radio/radio-trust.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/media/radio/radio-trust.c b/drivers/media/radio/radio-trust.c index 193161956253..e7b111fcd105 100644 --- a/drivers/media/radio/radio-trust.c +++ b/drivers/media/radio/radio-trust.c @@ -78,6 +78,7 @@ static __u16 curtreble; static unsigned long curfreq; static int curstereo; static int curmute; +static unsigned long in_use; /* i2c addresses */ #define TDA7318_ADDR 0x88 @@ -336,10 +337,21 @@ static int vidioc_s_audio(struct file *file, void *priv, return 0; } +static int trust_exclusive_open(struct inode *inode, struct file *file) +{ + return test_and_set_bit(0, &in_use) ? -EBUSY : 0; +} + +static int trust_exclusive_release(struct inode *inode, struct file *file) +{ + clear_bit(0, &in_use); + return 0; +} + static const struct file_operations trust_fops = { .owner = THIS_MODULE, - .open = video_exclusive_open, - .release = video_exclusive_release, + .open = trust_exclusive_open, + .release = trust_exclusive_release, .ioctl = video_ioctl2, #ifdef CONFIG_COMPAT .compat_ioctl = v4l_compat_ioctl32, @@ -366,6 +378,7 @@ static struct video_device trust_radio = { .name = "Trust FM Radio", .fops = &trust_fops, .ioctl_ops = &trust_ioctl_ops, + .release = video_device_release_empty, }; static int __init trust_init(void) |