diff mbox series

[RESEND,v3,1/3] media: uapi: v4l: Change V4L2_TYPE_IS_CAPTURE condition

Message ID 20240725061034.461-2-nas.chung@chipsnmedia.com
State New
Headers show
Series Change V4L2_TYPE_IS_CAPTURE condition | expand

Commit Message

Nas Chung July 25, 2024, 6:10 a.m. UTC 
Explicitly compare a buffer type only with valid buffer types,
to avoid matching a buffer type outside of the valid buffer type set.

Signed-off-by: Nas Chung <nas.chung@chipsnmedia.com>
Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
---
 include/uapi/linux/videodev2.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 4e91362da6da..8293b2197ea3 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -153,10 +153,17 @@  enum v4l2_buf_type {
 	V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
 	V4L2_BUF_TYPE_META_CAPTURE         = 13,
 	V4L2_BUF_TYPE_META_OUTPUT	   = 14,
+	/*  V4L2_TYPE_IS_VALID and V4L2_TYPE_IS_OUTPUT must
+	 *  be updated if a new type is added.
+	 */
 	/* Deprecated, do not use */
 	V4L2_BUF_TYPE_PRIVATE              = 0x80,
 };
 
+#define V4L2_TYPE_IS_VALID(type)		\
+	((type) >= V4L2_BUF_TYPE_VIDEO_CAPTURE	\
+	 && (type) <= V4L2_BUF_TYPE_META_OUTPUT)
+
 #define V4L2_TYPE_IS_MULTIPLANAR(type)			\
 	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
 	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
@@ -171,7 +178,8 @@  enum v4l2_buf_type {
 	 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT			\
 	 || (type) == V4L2_BUF_TYPE_META_OUTPUT)
 
-#define V4L2_TYPE_IS_CAPTURE(type) (!V4L2_TYPE_IS_OUTPUT(type))
+#define V4L2_TYPE_IS_CAPTURE(type)	\
+	(V4L2_TYPE_IS_VALID(type) && !V4L2_TYPE_IS_OUTPUT(type))
 
 enum v4l2_tuner_type {
 	V4L2_TUNER_RADIO	     = 1,