V4L/DVB (7880): saa7134: remove explicit GPIO initialization

[linux-2.6] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 01666979beac6f1a7e492d96ecf940648d1b40cf..933e60ebccae9f35001753a4426993c6aaf54fb6 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -22,6 +22,7 @@
 #include <linux/mempolicy.h>
 #include <linux/sem.h>
 #include <linux/file.h>
+#include <linux/fdtable.h>
 #include <linux/key.h>
 #include <linux/binfmts.h>
 #include <linux/mman.h>
@@ -431,6 +432,7 @@ void mmput(struct mm_struct *mm)
        if (atomic_dec_and_test(&mm->mm_users)) {
                exit_aio(mm);
                exit_mmap(mm);
+               set_mm_exe_file(mm, NULL);
                if (!list_empty(&mm->mmlist)) {
                        spin_lock(&mmlist_lock);
                        list_del(&mm->mmlist);
@@ -543,6 +545,8 @@ struct mm_struct *dup_mm(struct task_struct *tsk)
        if (init_new_context(tsk, mm))
                goto fail_nocontext;
 
+       dup_mm_exe_file(oldmm, mm);
+
        err = dup_mmap(mm, oldmm);
        if (err)
                goto free_pt;
@@ -889,7 +893,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
        sig->group_exit_code = 0;
        sig->group_exit_task = NULL;
        sig->group_stop_count = 0;
-       sig->curr_target = NULL;
+       sig->curr_target = tsk;
        init_sigpending(&sig->shared_pending);
        INIT_LIST_HEAD(&sig->posix_timers);
 
@@ -1696,7 +1700,12 @@ asmlinkage long sys_unshare(unsigned long unshare_flags)
                                CLONE_NEWNET))
                goto bad_unshare_out;
 
-       if (unshare_flags & CLONE_SYSVSEM)
+       /*
+        * CLONE_NEWIPC must also detach from the undolist: after switching
+        * to a new ipc namespace, the semaphore arrays from the old
+        * namespace are unreachable.
+        */
+       if (unshare_flags & (CLONE_NEWIPC|CLONE_SYSVSEM))
                do_sysvsem = 1;
        if ((err = unshare_thread(unshare_flags)))
                goto bad_unshare_out;