mm: filemap: remove unnecessary iitialization of ret

The ret variable can be defined without assigning a value, as it is
assigned before use.

Link: https://lkml.kernel.org/r/20231205022954.101045-1-zeming@nfschina.com
Signed-off-by: Li zeming <zeming@nfschina.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/filemap.c b/mm/filemap.c
index 71f00539ac00ce99b99bc6a0844e0a5cc8afc8c6..c0d7e1d7eea29ecf4712014a49a25839ff97a62a 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1623,7 +1623,7 @@ EXPORT_SYMBOL_GPL(__folio_lock_killable);
 static int __folio_lock_async(struct folio *folio, struct wait_page_queue *wait)
 {
        struct wait_queue_head *q = folio_waitqueue(folio);
-       int ret = 0;
+       int ret;
 
        wait->folio = folio;
        wait->bit_nr = PG_locked;