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Diffstat (limited to 'include/media/v4l2-subdev.h')
-rw-r--r--include/media/v4l2-subdev.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 9689f38a0af1..2f80c9c818ed 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -358,7 +358,11 @@ struct v4l2_mbus_frame_desc_entry {
} bus;
};
-#define V4L2_FRAME_DESC_ENTRY_MAX 4
+ /*
+ * If this number is too small, it should be dropped altogether and the
+ * API switched to a dynamic number of frame descriptor entries.
+ */
+#define V4L2_FRAME_DESC_ENTRY_MAX 8
/**
* enum v4l2_mbus_frame_desc_type - media bus frame description type
@@ -1046,6 +1050,8 @@ v4l2_subdev_get_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
unsigned int pad)
{
+ if (WARN_ON(!state))
+ return NULL;
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
return &state->pads[pad].try_fmt;
@@ -1064,6 +1070,8 @@ v4l2_subdev_get_pad_crop(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
unsigned int pad)
{
+ if (WARN_ON(!state))
+ return NULL;
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
return &state->pads[pad].try_crop;
@@ -1082,6 +1090,8 @@ v4l2_subdev_get_pad_compose(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state,
unsigned int pad)
{
+ if (WARN_ON(!state))
+ return NULL;
if (WARN_ON(pad >= sd->entity.num_pads))
pad = 0;
return &state->pads[pad].try_compose;