vm: add VM_FAULT_SIGSEGV handling support

[firefly-linux-kernel-4.4.55.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 04232bb173f05a7d2604b470643fee10cdc074da..cca32308587624b1f96f324897d2e0bb23695ae5 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1844,7 +1844,8 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
                                                else
                                                        return -EFAULT;
                                        }
-                                       if (ret & VM_FAULT_SIGBUS)
+                                       if (ret & (VM_FAULT_SIGBUS |
+                                                  VM_FAULT_SIGSEGV))
                                                return i ? i : -EFAULT;
                                        BUG();
                                }
@@ -1954,7 +1955,7 @@ int fixup_user_fault(struct task_struct *tsk, struct mm_struct *mm,
                        return -ENOMEM;
                if (ret & (VM_FAULT_HWPOISON | VM_FAULT_HWPOISON_LARGE))
                        return -EHWPOISON;
-               if (ret & VM_FAULT_SIGBUS)
+               if (ret & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV))
                        return -EFAULT;
                BUG();
        }