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authorHans Verkuil <hverkuil@xs4all.nl>2008-07-30 08:43:36 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:36:47 -0200
commitd56dc61265d2527a63ab5b0f03199a43cd89ca36 (patch)
treebea2a5b12fc120ca6e8797b2f16ad9696e0f25dd /drivers/media/video/meye.c
parent95f73c5b57990c97047c200b8746ab62a360c5bc (diff)
V4L/DVB (8613): v4l: move BKL down to the driver level.
The BKL is now moved from the video_open function in v4l2-dev.c to the various drivers. It seems about a third of the drivers already has a lock of some sort protecting the open(), another third uses video_exclusive_open (yuck!) and the last third required adding the BKL in their open function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/meye.c')
-rw-r--r--drivers/media/video/meye.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index a9ef7802eb5f..cdaff2fdf394 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -845,15 +845,19 @@ static int meye_open(struct inode *inode, struct file *file)
{
int i, err;
+ lock_kernel();
err = video_exclusive_open(inode, file);
- if (err < 0)
+ if (err < 0) {
+ unlock_kernel();
return err;
+ }
mchip_hic_stop();
if (mchip_dma_alloc()) {
printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
video_exclusive_release(inode, file);
+ unlock_kernel();
return -ENOBUFS;
}
@@ -861,6 +865,7 @@ static int meye_open(struct inode *inode, struct file *file)
meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
kfifo_reset(meye.grabq);
kfifo_reset(meye.doneq);
+ unlock_kernel();
return 0;
}

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