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authorMike Rapoport <rppt@linux.ibm.com>2019-03-05 15:48:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 21:07:20 -0800
commita862f68a8b360086f248cbc3606029441b5f5197 (patch)
treec38cb46b547d865da3df438e3db0284003bdd5b1 /mm/readahead.c
parentbc8ff3ca6589d63c6d10f5ee8bed38f74851b469 (diff)
docs/core-api/mm: fix return value descriptions in mm/
Many kernel-doc comments in mm/ have the return value descriptions either misformatted or omitted at all which makes kernel-doc script unhappy: $ make V=1 htmldocs ... ./mm/util.c:36: info: Scanning doc for kstrdup ./mm/util.c:41: warning: No description found for return value of 'kstrdup' ./mm/util.c:57: info: Scanning doc for kstrdup_const ./mm/util.c:66: warning: No description found for return value of 'kstrdup_const' ./mm/util.c:75: info: Scanning doc for kstrndup ./mm/util.c:83: warning: No description found for return value of 'kstrndup' ... Fixing the formatting and adding the missing return value descriptions eliminates ~100 such warnings. Link: http://lkml.kernel.org/r/1549549644-4903-4-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 1ae16522412a..a4593654a26c 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -81,6 +81,8 @@ static void read_cache_pages_invalidate_pages(struct address_space *mapping,
* @data: private data for the callback routine.
*
* Hides the details of the LRU cache etc from the filesystems.
+ *
+ * Returns: %0 on success, error return by @filler otherwise
*/
int read_cache_pages(struct address_space *mapping, struct list_head *pages,
int (*filler)(void *, struct page *), void *data)