mm: backing-dev: Remove the unneeded result variable

Return the value cgwb_bdi_init() directly instead of storing it in another
redundant variable.

Link: https://lkml.kernel.org/r/20220826071906.252419-1-ye.xingchen@zte.com.cn
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index de65cb1..c30419a 100644 (file)
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -776,8 +776,6 @@ static void cgwb_remove_from_bdi_list(struct bdi_writeback *wb)
 
 int bdi_init(struct backing_dev_info *bdi)
 {
-       int ret;
-
        bdi->dev = NULL;
 
        kref_init(&bdi->refcnt);
@@ -788,9 +786,7 @@ int bdi_init(struct backing_dev_info *bdi)
        INIT_LIST_HEAD(&bdi->wb_list);
        init_waitqueue_head(&bdi->wb_waitq);
 
-       ret = cgwb_bdi_init(bdi);
-
-       return ret;
+       return cgwb_bdi_init(bdi);
 }
 
 struct backing_dev_info *bdi_alloc(int node_id)