[093/178] mm/sparse: add the missing sparse_buffer_fini() in error branch

Commit Message

Andrew Morton April 30, 2021, 5:57 a.m. UTC

From: Wang Wensheng <[e-mail]>
Subject: mm/sparse: add the missing sparse_buffer_fini() in error branch

sparse_buffer_init() and sparse_buffer_fini() should appear in pair, or a
WARN issue would be through the next time sparse_buffer_init() runs.

Add the missing sparse_buffer_fini() in error branch.

Link: https://lkml.kernel.org/r/[e-mail]
Fixes: 85c77f791390 ("mm/sparse: add new sparse_init_nid() and sparse_init()")
Signed-off-by: Wang Wensheng <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
Reviewed-by: Oscar Salvador <[e-mail]>
Cc: Pavel Tatashin <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/sparse.c |    1 +
 1 file changed, 1 insertion(+)

Patch

--- a/mm/sparse.c~mm-sparse-add-the-missing-sparse_buffer_fini-in-error-branch
+++ a/mm/sparse.c
@@ -547,6 +547,7 @@  static void __init sparse_init_nid(int n
 			pr_err("%s: node[%d] memory map backing failed. Some memory will not be available.",
 			       __func__, nid);
 			pnum_begin = pnum;
+			sparse_buffer_fini();
 			goto failed;
 		}
 		check_usemap_section_nr(nid, usage);