[PATCH 2/2] idr: describe how nextidp works in idr_get_next().

[Naohiro Aota]

It was unclear in original kernel-doc how nextidp worked in
idr_get_next(). Let's describe it.

Signed-off-by: Naohiro Aota <naota@xxxxxxxxx>
---
 lib/idr.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/lib/idr.c b/lib/idr.c
index fb86a67..5e0966b 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -589,7 +589,8 @@ EXPORT_SYMBOL(idr_for_each);
  * @nextidp:  pointer to lookup key
  *
  * Returns pointer to registered object with id, which is next number to
- * given id.
+ * given id. After being looked up, *@nextidp will be updated for the next
+ * iteration.
  */
 
 void *idr_get_next(struct idr *idp, int *nextidp)
-- 
1.7.2

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