From d56dc61265d2527a63ab5b0f03199a43cd89ca36 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 30 Jul 2008 08:43:36 -0300 Subject: 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/se401.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/media/video/se401.c') diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c index acceed5d04ae..d16bbf0d2783 100644 --- a/drivers/media/video/se401.c +++ b/drivers/media/video/se401.c @@ -936,14 +936,18 @@ static int se401_open(struct inode *inode, struct file *file) struct usb_se401 *se401 = (struct usb_se401 *)dev; int err = 0; - if (se401->user) + lock_kernel(); + if (se401->user) { + unlock_kernel(); return -EBUSY; + } se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); if (se401->fbuf) file->private_data = dev; else err = -ENOMEM; se401->user = !err; + unlock_kernel(); return err; } -- cgit v1.2.3