[media] tea575x: allow multiple opens

[firefly-linux-kernel-4.4.55.git] / sound / i2c / other / tea575x-tuner.c

diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index 0d7a659c494c4028d2b4ec4a6efe1900cc017f93..beb0e86537cd106e086c26a9f7ef9e03f271a616 100644 (file)
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -282,26 +282,9 @@ static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
        return 0;
 }
 
-static int snd_tea575x_exclusive_open(struct file *file)
-{
-       struct snd_tea575x *tea = video_drvdata(file);
-
-       return test_and_set_bit(0, &tea->in_use) ? -EBUSY : 0;
-}
-
-static int snd_tea575x_exclusive_release(struct file *file)
-{
-       struct snd_tea575x *tea = video_drvdata(file);
-
-       clear_bit(0, &tea->in_use);
-       return 0;
-}
-
 static const struct v4l2_file_operations tea575x_fops = {
        .owner          = THIS_MODULE,
-       .open           = snd_tea575x_exclusive_open,
-       .release        = snd_tea575x_exclusive_release,
-       .ioctl          = video_ioctl2,
+       .unlocked_ioctl = video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
@@ -340,13 +323,14 @@ int snd_tea575x_init(struct snd_tea575x *tea)
        if (snd_tea575x_read(tea) != 0x55AA)
                return -ENODEV;
 
-       tea->in_use = 0;
        tea->val = TEA575X_BIT_BAND_FM | TEA575X_BIT_SEARCH_10_40;
        tea->freq = 90500 * 16;         /* 90.5Mhz default */
        snd_tea575x_set_freq(tea);
 
        tea->vd = tea575x_radio;
        video_set_drvdata(&tea->vd, tea);
+       mutex_init(&tea->mutex);
+       tea->vd.lock = &tea->mutex;
 
        v4l2_ctrl_handler_init(&tea->ctrl_handler, 1);
        tea->vd.ctrl_handler = &tea->ctrl_handler;