linux-kernel - [PATCH AUTOSEL 6.6 099/294] iommu/amd/pgtbl

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Message-Id: <20250505225634.2688578-99-sashal@kernel.org>
Date: Mon,  5 May 2025 18:53:19 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Vasant Hegde <vasant.hegde@....com>,
	Jason Gunthorpe <jgg@...dia.com>,
	Joerg Roedel <jroedel@...e.de>,
	Sasha Levin <sashal@...nel.org>,
	joro@...tes.org,
	will@...nel.org,
	iommu@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.6 099/294] iommu/amd/pgtbl_v2: Improve error handling

From: Vasant Hegde <vasant.hegde@....com>

[ Upstream commit 36a1cfd497435ba5e37572fe9463bb62a7b1b984 ]

Return -ENOMEM if v2_alloc_pte() fails to allocate memory.

Signed-off-by: Vasant Hegde <vasant.hegde@....com>
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Link: https://lore.kernel.org/r/20250227162320.5805-4-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@...e.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iommu/amd/io_pgtable_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c
index cbf0c46015125..6c0777a3c57b7 100644
--- a/drivers/iommu/amd/io_pgtable_v2.c
+++ b/drivers/iommu/amd/io_pgtable_v2.c
@@ -259,7 +259,7 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova,
 		pte = v2_alloc_pte(pdom->nid, pdom->iop.pgd,
 				   iova, map_size, gfp, &updated);
 		if (!pte) {
-			ret = -EINVAL;
+			ret = -ENOMEM;
 			goto out;
 		}
 
-- 
2.39.5