diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/xen/mmu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/i386/xen/mmu.c b/arch/i386/xen/mmu.c index 4ae038aa6c2..874db0cd1d2 100644 --- a/arch/i386/xen/mmu.c +++ b/arch/i386/xen/mmu.c @@ -559,6 +559,9 @@ void xen_exit_mmap(struct mm_struct *mm) put_cpu(); spin_lock(&mm->page_table_lock); - xen_pgd_unpin(mm->pgd); + + /* pgd may not be pinned in the error exit path of execve */ + if (PagePinned(virt_to_page(mm->pgd))) + xen_pgd_unpin(mm->pgd); spin_unlock(&mm->page_table_lock); } |