[PATCH v2] liveupdate: Document that retrieve failure is permanent

[Tarun Sahu]

Signed-off-by: Tarun Sahu <tarunsahu at google.com>
---
 include/uapi/linux/liveupdate.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/liveupdate.h b/include/uapi/linux/liveupdate.h
index 30bc66ee9436..d06aa24350b5 100644
--- a/include/uapi/linux/liveupdate.h
+++ b/include/uapi/linux/liveupdate.h
@@ -168,7 +168,9 @@ struct liveupdate_session_preserve_fd {
  * associated with the token and populates the @fd field with a new file
  * descriptor referencing the restored resource in the current (new) kernel.
  * This operation must be performed *before* signaling completion via
- * %LIVEUPDATE_IOCTL_FINISH.
+ * %LIVEUPDATE_IOCTL_FINISH. If a retrieve of a token fails, subsequent
+ * attempts to retrieve the token fail with the same error code. Failed
+ * retrieves are not retried.
  *
  * Return: 0 on success, negative error code on failure (e.g., invalid token).
  */

base-commit: 2d3090a8aeb596a26935db0955d46c9a5db5c6ce
-- 
2.54.0.1099.g489fc7bff1-goog