From: Younger Liu <liuyiy...@hisense.com>

  In get_mapping_page(), after calling find_or_create_page(),
the return value should be checked.

  This patch has been provided:
http://www.spinics.net/lists/linux-fsdevel/msg66948.html
but not been applied now.

Signed-off-by: Younger Liu <liuyiy...@hisense.com>
Cc: Younger Liu <younger.li...@gmail.com>
Cc: Vyacheslav Dubeyko <sl...@dubeyko.com>
Reviewed-by: Prasad Joshi <prasadjoshi.li...@gmail.com>
---
 fs/logfs/segment.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/logfs/segment.c b/fs/logfs/segment.c
index d448a77..7f9b096 100644
--- a/fs/logfs/segment.c
+++ b/fs/logfs/segment.c
@@ -62,7 +62,8 @@ static struct page *get_mapping_page(struct
super_block *sb, pgoff_t index,
                page = read_cache_page(mapping, index, filler, sb);
        else {
                page = find_or_create_page(mapping, index, GFP_NOFS);
-               unlock_page(page);
+               if (page)
+                       unlock_page(page);
        }
        return page;
 }
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to