[PATCH 2/6] v4l2-event: Deny subscribing with a type of V4L2_EVENT_ALL

[Hans de Goede]

Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
 drivers/media/video/v4l2-event.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/v4l2-event.c b/drivers/media/video/v4l2-event.c
index 53b190c..9f56f18 100644
--- a/drivers/media/video/v4l2-event.c
+++ b/drivers/media/video/v4l2-event.c
@@ -215,6 +215,9 @@ int v4l2_event_subscribe(struct v4l2_fh *fh,
        unsigned long flags;
        unsigned i;
 
+       if (sub->type == V4L2_EVENT_ALL)
+               return -EINVAL;
+
        if (elems < 1)
                elems = 1;
        if (sub->type == V4L2_EVENT_CTRL) {
-- 
1.7.7

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