iommu/amd/pgtbl_v2: Improve error handling

hegdevasant · joergroedel · commit 36a1cfd49743 · 2025-03-10T09:27:09.000+01:00
Return -ENOMEM if v2_alloc_pte() fails to allocate memory. Signed-off-by: Vasant Hegde <vasant.hegde@amd.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20250227162320.5805-4-vasant.hegde@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c
@@ -254,7 +254,7 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova,
 		pte = v2_alloc_pte(cfg->amd.nid, pgtable->pgd,
 				   iova, map_size, gfp, &updated);
 		if (!pte) {
-			ret = -EINVAL;
+			ret = -ENOMEM;
 			goto out;
 		}
 

Original file line number	Diff line number	Diff line change
`@@ -254,7 +254,7 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova,`
`254`	`254`	`pte = v2_alloc_pte(cfg->amd.nid, pgtable->pgd,`
`255`	`255`	`iova, map_size, gfp, &updated);`
`256`	`256`	`if (!pte) {`
`257`		`- ret = -EINVAL;`
	`257`	`+ ret = -ENOMEM;`
`258`	`258`	`goto out;`
`259`	`259`	`}`
`260`	`260`