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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-05-01 08:47:44 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-05-01 08:47:44 -0700
commitbf61c8840efe60fd8f91446860b63338fb424158 (patch)
tree7a71832407a4f0d6346db773343f4c3ae2257b19 /arch/arm/kernel/swp_emulate.c
parent5846115b30f3a881e542c8bfde59a699c1c13740 (diff)
parent0c6a61657da78098472fd0eb71cc01f2387fa1bb (diff)
Merge branch 'next' into for-linus
Prepare first set of updates for 3.10 merge window.
Diffstat (limited to 'arch/arm/kernel/swp_emulate.c')
-rw-r--r--arch/arm/kernel/swp_emulate.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c
index df745188f5de..ab1017bd1667 100644
--- a/arch/arm/kernel/swp_emulate.c
+++ b/arch/arm/kernel/swp_emulate.c
@@ -109,10 +109,12 @@ static void set_segfault(struct pt_regs *regs, unsigned long addr)
{
siginfo_t info;
+ down_read(&current->mm->mmap_sem);
if (find_vma(current->mm, addr) == NULL)
info.si_code = SEGV_MAPERR;
else
info.si_code = SEGV_ACCERR;
+ up_read(&current->mm->mmap_sem);
info.si_signo = SIGSEGV;
info.si_errno = 0;