[PATCH v2 02/17] media: v4l2-subdev: Align frame descriptor error codes with routing

[Sakari Ailus <sakari.ailus@linux.intel.com>]

__v4l2_subdev_get_frame_desc_passthrough() returns -ENOSPC when there are
too many routes. There's a subtle difference when compared to -E2BIG, but
-E2BIG can be used in this case as well. In practice this was unlikely to
having been ever returned from the kernel as things currently stand.

-ENOSPC can be then repurposed for signalling of running out of entries in
the statically allocated array.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/media/v4l2-core/v4l2-subdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index e9f81b9be9e2..d93ed50255ed 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -2639,7 +2639,7 @@ int __v4l2_subdev_get_frame_desc_passthrough(struct v4l2_subdev *sd,
 
 			if (fd->num_entries >= V4L2_FRAME_DESC_ENTRY_MAX) {
 				dev_dbg(dev, "Frame desc entry limit reached\n");
-				return -ENOSPC;
+				return -E2BIG;
 			}
 
 			fd->entry[fd->num_entries] = *source_entry;
-- 
2.47.3