From: Donet Tom Date: Sun, 22 Jun 2025 12:01:24 +0000 (-0500) Subject: book3s64/radix : Handle error conditions properly in radix_vmemmap_populate X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58450938f771a2cd6eda614e666526556a158801;p=thirdparty%2Flinux.git book3s64/radix : Handle error conditions properly in radix_vmemmap_populate Error conditions are not handled properly if altmap is not present and PMD_SIZE vmemmap_alloc_block_buf fails. In this patch, if vmemmap_alloc_block_buf fails in the non-altmap case, we will fall back to the base mapping. Reviewed-by: Ritesh Harjani (IBM) Signed-off-by: Donet Tom Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/7f95fe91c827a2fb76367a58dbea724e811fb152.1750593372.git.donettom@linux.ibm.com --- diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 9f764bc42b8cc..3d67aee8c8cab 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -1173,7 +1173,7 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in vmemmap_set_pmd(pmd, p, node, addr, next); pr_debug("PMD_SIZE vmemmap mapping\n"); continue; - } else if (altmap) { + } else { /* * A vmemmap block allocation can fail due to * alignment requirements and we trying to align