mm/vmscan: fix error number for failed kthread

Fix the return value while failing to create the kswapd kernel thread. Also, the error message is prioritized as KERN_ERR. Signed-off-by: Gavin Shan <[email protected]> Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
cbmeeks · Oct 9, 2012 · d5dc0ad · d5dc0ad
1 parent e0f3c3f
commit d5dc0ad
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/mm/vmscan.c b/mm/vmscan.c
@@ -3126,9 +3126,9 @@ int kswapd_run(int nid)
 	if (IS_ERR(pgdat->kswapd)) {
 		/* failure at boot is fatal */
 		BUG_ON(system_state == SYSTEM_BOOTING);
-		printk("Failed to start kswapd on node %d\n",nid);
 		pgdat->kswapd = NULL;
-		ret = -1;
+		pr_err("Failed to start kswapd on node %d\n", nid);
+		ret = PTR_ERR(pgdat->kswapd);
 	}
 	return ret;
 }