diff mbox series

[5.4,089/168] media: mc-entity.c: use & to check pad flags, not ==

Message ID 20200310123644.307258286@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH March 10, 2020, 12:38 p.m. UTC 
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

commit 044041cd5227ec9ccf969f4bf1cc08bffe13b9d3 upstream.

These are bits so to test if a pad is a sink you use & but not ==.

It looks like the only reason this hasn't caused problems before is that
media_get_pad_index() is currently only used with pads that do not set the
MEDIA_PAD_FL_MUST_CONNECT flag. So a pad really had only the SINK or SOURCE
flag set and nothing else.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org>      # for v5.3 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/mc/mc-entity.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

--- a/drivers/media/mc/mc-entity.c
+++ b/drivers/media/mc/mc-entity.c
@@ -639,9 +639,9 @@  int media_get_pad_index(struct media_ent
 		return -EINVAL;
 
 	for (i = 0; i < entity->num_pads; i++) {
-		if (entity->pads[i].flags == MEDIA_PAD_FL_SINK)
+		if (entity->pads[i].flags & MEDIA_PAD_FL_SINK)
 			pad_is_sink = true;
-		else if (entity->pads[i].flags == MEDIA_PAD_FL_SOURCE)
+		else if (entity->pads[i].flags & MEDIA_PAD_FL_SOURCE)
 			pad_is_sink = false;
 		else
 			continue;	/* This is an error! */