Subject: + arch-parisc-mm-faultc-fix-uninitialized-variable-usage.patch added to -mm tree
To: felipensp@xxxxxxxxx,deller@xxxxxx,hannes@xxxxxxxxxxx,jejb@xxxxxxxxxxxxxxxx,mhocko@xxxxxxx,torvalds@xxxxxxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 25 Sep 2013 15:38:07 -0700
The patch titled
Subject: arch/parisc/mm/fault.c: fix uninitialized variable usage
has been added to the -mm tree. Its filename is
arch-parisc-mm-faultc-fix-uninitialized-variable-usage.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/arch-parisc-mm-faultc-fix-uninitialized-variable-usage.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/arch-parisc-mm-faultc-fix-uninitialized-variable-usage.patch
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------------------------------------------------------
From: Felipe Pena <felipensp@xxxxxxxxx>
Subject: arch/parisc/mm/fault.c: fix uninitialized variable usage
The FAULT_FLAG_WRITE flag has been set based on uninitialized variable.
Fixes regression added by
: commit 759496ba6407c6994d6a5ce3a5e74937d7816208
: Author: Johannes Weiner <hannes@xxxxxxxxxxx>
: AuthorDate: Thu Sep 12 15:13:39 2013 -0700
: Commit: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
: CommitDate: Thu Sep 12 15:38:01 2013 -0700
:
: arch: mm: pass userspace fault flag to generic fault handler
Signed-off-by: Felipe Pena <felipensp@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/parisc/mm/fault.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN arch/parisc/mm/fault.c~arch-parisc-mm-faultc-fix-uninitialized-variable-usage arch/parisc/mm/fault.c
--- a/arch/parisc/mm/fault.c~arch-parisc-mm-faultc-fix-uninitialized-variable-usage
+++ a/arch/parisc/mm/fault.c
@@ -182,6 +182,9 @@ void do_page_fault(struct pt_regs *regs,
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
+
+ acc_type = parisc_acctyp(code, regs->iir);
+
if (acc_type & VM_WRITE)
flags |= FAULT_FLAG_WRITE;
retry:
@@ -196,8 +199,6 @@ retry:
good_area:
- acc_type = parisc_acctyp(code,regs->iir);
-
if ((vma->vm_flags & acc_type) != acc_type)
goto bad_area;
_
Patches currently in -mm which might be from felipensp@xxxxxxxxx are
arch-parisc-mm-faultc-fix-uninitialized-variable-usage.patch
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