[PATCH] mm/vmscan: fix error return in kswapd_run()

[Xishi Qiu]

Fix the error return value in kswapd_run(). The bug was
introduced by commit d5dc0ad928fb9e972001e552597fd0b794863f34
"mm/vmscan: fix error number for failed kthread".

Signed-off-by: Xishi Qiu <qiuxi...@huawei.com>
---
 mm/vmscan.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 88c5fed..950636e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3188,9 +3188,9 @@ int kswapd_run(int nid)
        if (IS_ERR(pgdat->kswapd)) {
                /* failure at boot is fatal */
                BUG_ON(system_state == SYSTEM_BOOTING);
-               pgdat->kswapd = NULL;
                pr_err("Failed to start kswapd on node %d\n", nid);
                ret = PTR_ERR(pgdat->kswapd);
+               pgdat->kswapd = NULL;
        }
        return ret;
 }
-- 
1.7.6.1

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