From: Roel Kluin <roel.kluin@gmail.com>
To: Jeff Dike <jdike@addtoit.com>,
user-mode-linux-devel@lists.sourceforge.net,
Andrew Morton <akpm@linux-foundation.org>
Subject: [uml-devel] [PATCH] uml: Fix order of pud and pmd_free()
Date: Sat, 22 Aug 2009 15:31:51 +0200 [thread overview]
Message-ID: <4A8FF347.30309@gmail.com> (raw)
If pmd_alloc() fails we should only free the prior allocated pud,
if pte_alloc_map() fails, we should free pmd as well.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 0cd9a7a..8bfd1e9 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -38,10 +38,10 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
*pte = pte_mkread(*pte);
return 0;
- out_pmd:
- pud_free(mm, pud);
out_pte:
pmd_free(mm, pmd);
+ out_pmd:
+ pud_free(mm, pud);
out:
return -ENOMEM;
}
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