From: Sahil Chandna <chandna.sahil@gmail.com>
Date: Wed, 4 Feb 2026 18:54:07 +0000 (+0530)
Subject: mm/vmscan: use %pe to print error pointers
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a8eabc6e4c7fec44570e9e70d464fea076633c9;p=thirdparty%2Fkernel%2Fstable.git

mm/vmscan: use %pe to print error pointers

Use the %pe printk format specifier to report error pointers directly
instead of printing PTR_ERR() as a long value.  This improves clarity,
produces more readable error messages.

This instance was flagged by the Coccinelle script
(misc/ptr_err_to_pe.cocci) as an opportunity to adopt %pe.

Found by: make coccicheck MODE=report M=mm/
No functional change intended

Link: https://lkml.kernel.org/r/80a6643657a60e75ddf48b4869b3e7fdc101f855.1770230135.git.chandna.sahil@gmail.com
Signed-off-by: Sahil Chandna <chandna.sahil@gmail.com>
Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 973ffb9813ea..3fc4a4461927 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -7470,8 +7470,8 @@ void __meminit kswapd_run(int nid)
 		pgdat->kswapd = kthread_create_on_node(kswapd, pgdat, nid, "kswapd%d", nid);
 		if (IS_ERR(pgdat->kswapd)) {
 			/* failure at boot is fatal */
-			pr_err("Failed to start kswapd on node %d，ret=%ld\n",
-				   nid, PTR_ERR(pgdat->kswapd));
+			pr_err("Failed to start kswapd on node %d, ret=%pe\n",
+				   nid, pgdat->kswapd);
 			BUG_ON(system_state < SYSTEM_RUNNING);
 			pgdat->kswapd = NULL;
 		} else {