linux-kernel - [PATCH] kho: fix doc for kho_restore

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Message-ID: <20260123190506.1058669-1-tycho@kernel.org>
Date: Fri, 23 Jan 2026 12:05:06 -0700
From: Tycho Andersen <tycho@...nel.org>
To: Mike Rapoport <rppt@...nel.org>,
	Alexander Graf <graf@...zon.com>,
	Pasha Tatashin <pasha.tatashin@...een.com>,
	Pratyush Yadav <pratyush@...nel.org>
Cc: kexec@...ts.infradead.org,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] kho: fix doc for kho_restore_pages()

From: "Tycho Andersen (AMD)" <tycho@...nel.org>

This function returns NULL if kho_restore_page() returns NULL, which
happens in a couple of corner cases. It never returns an error code.

Signed-off-by: Tycho Andersen (AMD) <tycho@...nel.org>
---
 kernel/liveupdate/kexec_handover.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c
index d4482b6e3cae..4c38ea7987c8 100644
--- a/kernel/liveupdate/kexec_handover.c
+++ b/kernel/liveupdate/kexec_handover.c
@@ -281,7 +281,7 @@ EXPORT_SYMBOL_GPL(kho_restore_folio);
  * Restore a contiguous list of order 0 pages that was preserved with
  * kho_preserve_pages().
  *
- * Return: 0 on success, error code on failure
+ * Return: the first page on success, NULL on failure.
  */
 struct page *kho_restore_pages(phys_addr_t phys, unsigned int nr_pages)
 {

base-commit: c072629f05d7bca1148ab17690d7922a31423984
-- 
2.52.0