From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 5 Mar 2012 23:29:51 +0000 (+0000)
Subject: ARM: ecard: ensure fake vma vm_flags is setup
X-Git-Tag: v3.3-rc7~18^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=81caaf2503be8fbb738ea4f124063dcc24958397;p=platform%2Fkernel%2Flinux-stable.git

ARM: ecard: ensure fake vma vm_flags is setup

Our TLB ops want to check the vma vm_flags to find out whether the
mapping is executable.  However, we leave this uninitialized in
ecard.c.  Initialize it with an appropriate value.

Reported-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 4dd0eda..1651d49 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -242,6 +242,7 @@ static void ecard_init_pgtables(struct mm_struct *mm)
 
 	memcpy(dst_pgd, src_pgd, sizeof(pgd_t) * (EASI_SIZE / PGDIR_SIZE));
 
+	vma.vm_flags = VM_EXEC;
 	vma.vm_mm = mm;
 
 	flush_tlb_range(&vma, IO_START, IO_START + IO_SIZE);