FAILED: patch "[PATCH] pmdomain: rockchip: propagate subdomain add errors" failed to apply to 5.15-stable tree

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 4c0d69d677cf5b0065ebbb3ceb8ba66fddbec630
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2026101216-brunt-lubricant-e88b@gregkh' --subject-prefix 'PATCH 5.15.y' 'HEAD^..'

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4c0d69d677cf5b0065ebbb3ceb8ba66fddbec630 Mon Sep 17 00:00:00 2001
From: Shawn Lin <[email protected]>
Date: Mon, 21 Sep 2026 14:52:50 +0800
Subject: [PATCH] pmdomain: rockchip: propagate subdomain add errors

rockchip_pm_add_subdomain() ignored the return value of its recursive call, so a failure deeper in the hierarchy was silently dropped and probe still succeeded with an incomplete domain tree.

index ba66ae719428..068dd4b3705e 100644
@@ -1018,7 +1018,9 @@ static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
 				parent_domain->name, child_domain->name);
 		}
 
-		rockchip_pm_add_subdomain(pmu, np);
+		error = rockchip_pm_add_subdomain(pmu, np);
+		if (error)
+			return error;
 	}
 
 	return 0;

From: Shawn Lin <[email protected]>

[ Upstream commit 4c0d69d677cf5b0065ebbb3ceb8ba66fddbec630 ]

rockchip_pm_add_subdomain() ignored the return value of its recursive call, so a failure deeper in the hierarchy was silently dropped and probe still succeeded with an incomplete domain tree.

---
 drivers/soc/rockchip/pm_domains.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

index 0868b7d406fba..2b22ffea4bbeb 100644
@@ -617,7 +617,9 @@ static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
 				parent_domain->name, child_domain->name);
 		}
 
-		rockchip_pm_add_subdomain(pmu, np);
+		error = rockchip_pm_add_subdomain(pmu, np);
+		if (error)
+			return error;
 	}
 
 	return 0;

2.53.0