Message ID | 1357678664-20309-1-git-send-email-herton.krzesinski@canonical.com |
---|---|
State | New |
Headers | show |
diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c index df74518..ab1017b 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(¤t->mm->mmap_sem); if (find_vma(current->mm, addr) == NULL) info.si_code = SEGV_MAPERR; else info.si_code = SEGV_ACCERR; + up_read(¤t->mm->mmap_sem); info.si_signo = SIGSEGV; info.si_errno = 0;