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| author | Hans de Goede <hdegoede@redhat.com> | 2012-05-19 07:57:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-06-11 16:02:54 -0300 |
| commit | 5daf53a6eb5c54c618c9def388d81c2769fd11a0 (patch) | |
| tree | ae26108d5971c8e9fb7fcc5d9795b12145a1466b /sound/i2c/other | |
| parent | 0875eb755b66a6766be117133dbb6d8157ace337 (diff) | |
| download | linux-stable-5daf53a6eb5c54c618c9def388d81c2769fd11a0.tar.gz linux-stable-5daf53a6eb5c54c618c9def388d81c2769fd11a0.tar.bz2 linux-stable-5daf53a6eb5c54c618c9def388d81c2769fd11a0.zip | |
[media] snd_tea575x: Make the module using snd_tea575x the fops owner
Before this patch the owner field of the /dev/radio# device fops was set to
the snd-tea575x-tuner module itself. Meaning that the module which was using
it could be rmmod-ed while the device is open, and then BAD things happen.
I know, as I found out the hard way :)
Note that there is no need to also somehow increase the refcount of the
snd-tea575x-tuner module itself, since any drivers using it will have
symbolic references to it.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
CC: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'sound/i2c/other')
| -rw-r--r-- | sound/i2c/other/tea575x-tuner.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index aa9900dff6e9..ac62ee791a60 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -317,7 +317,6 @@ static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) } static const struct v4l2_file_operations tea575x_fops = { - .owner = THIS_MODULE, .unlocked_ioctl = video_ioctl2, .open = v4l2_fh_open, .release = v4l2_fh_release, @@ -337,7 +336,6 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { }; static const struct video_device tea575x_radio = { - .fops = &tea575x_fops, .ioctl_ops = &tea575x_ioctl_ops, .release = video_device_release_empty, }; @@ -349,7 +347,7 @@ static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { /* * initialize all the tea575x chips */ -int snd_tea575x_init(struct snd_tea575x *tea) +int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner) { int retval; @@ -374,6 +372,9 @@ int snd_tea575x_init(struct snd_tea575x *tea) tea->vd.lock = &tea->mutex; tea->vd.v4l2_dev = tea->v4l2_dev; tea->vd.ctrl_handler = &tea->ctrl_handler; + tea->fops = tea575x_fops; + tea->fops.owner = owner; + tea->vd.fops = &tea->fops; set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); /* disable hw_freq_seek if we can't use it */ if (tea->cannot_read_data) |