From 9e7b09d09931b8ef2d1e46335bc41eff5ff0d23a Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 30 Apr 2011 10:34:05 -0300 Subject: v4l: Release module if subdev registration fails commit b7534f002d3c81d18abfbf57179d07d3ec763bb5 upstream. If v4l2_device_register_subdev() fails, the reference to the subdev module taken by the function isn't released. Fix this. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman --- drivers/media/video/v4l2-device.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c index ce64fe16bc6..3504fc6d7b7 100644 --- a/drivers/media/video/v4l2-device.c +++ b/drivers/media/video/v4l2-device.c @@ -131,14 +131,17 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, sd->v4l2_dev = v4l2_dev; if (sd->internal_ops && sd->internal_ops->registered) { err = sd->internal_ops->registered(sd); - if (err) + if (err) { + module_put(sd->owner); return err; + } } /* This just returns 0 if either of the two args is NULL */ err = v4l2_ctrl_add_handler(v4l2_dev->ctrl_handler, sd->ctrl_handler); if (err) { if (sd->internal_ops && sd->internal_ops->unregistered) sd->internal_ops->unregistered(sd); + module_put(sd->owner); return err; } spin_lock(&v4l2_dev->lock); -- cgit v1.2.3