summary refs log tree commit diff
path: root/kernel/fork.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 2f11bbe376b0..a17621c6cd42 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -800,14 +800,11 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
  * Allocate a new mm structure and copy contents from the
  * mm structure of the passed in task structure.
  */
-struct mm_struct *dup_mm(struct task_struct *tsk)
+static struct mm_struct *dup_mm(struct task_struct *tsk)
 {
 	struct mm_struct *mm, *oldmm = current->mm;
 	int err;
 
-	if (!oldmm)
-		return NULL;
-
 	mm = allocate_mm();
 	if (!mm)
 		goto fail_nomem;
@@ -1229,7 +1226,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	if (!try_module_get(task_thread_info(p)->exec_domain->module))
 		goto bad_fork_cleanup_count;
 
-	p->did_exec = 0;
 	delayacct_tsk_init(p);	/* Must remain after dup_task_struct() */
 	copy_flags(clone_flags, p);
 	INIT_LIST_HEAD(&p->children);
@@ -1654,7 +1650,7 @@ SYSCALL_DEFINE0(fork)
 	return do_fork(SIGCHLD, 0, 0, NULL, NULL);
 #else
 	/* can not support in nommu mode */
-	return(-EINVAL);
+	return -EINVAL;
 #endif
 }
 #endif
@@ -1662,7 +1658,7 @@ SYSCALL_DEFINE0(fork)
 #ifdef __ARCH_WANT_SYS_VFORK
 SYSCALL_DEFINE0(vfork)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0, 
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0,
 			0, NULL, NULL);
 }
 #endif