1 files changed, 6 insertions, 5 deletions

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 44e0bff38e72..16efa974532b 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -129,7 +129,7 @@ void release_thread(struct task_struct *dead_task)
 
 int copy_thread(unsigned long clone_flags, unsigned long sp,
         unsigned long arg,
-        struct task_struct *p, struct pt_regs *regs)
+        struct task_struct *p, struct pt_regs *unused)
 {
         struct pt_regs *childregs = task_pt_regs(p);
         struct task_struct *tsk;
@@ -138,7 +138,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
         p->thread.sp = (unsigned long) childregs;
         p->thread.sp0 = (unsigned long) (childregs+1);
 
-        if (unlikely(!regs)) {
+        if (unlikely(p->flags & PF_KTHREAD)) {
                 /* kernel thread */
                 memset(childregs, 0, sizeof(struct pt_regs));
                 p->thread.ip = (unsigned long) ret_from_kernel_thread;
@@ -156,12 +156,13 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
                 memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
                 return 0;
         }
-        *childregs = *regs;
+        *childregs = *current_pt_regs();
         childregs->ax = 0;
-        childregs->sp = sp;
+        if (sp)
+                childregs->sp = sp;
 
         p->thread.ip = (unsigned long) ret_from_fork;
-        task_user_gs(p) = get_user_gs(regs);
+        task_user_gs(p) = get_user_gs(current_pt_regs());
 
         p->fpu_counter = 0;
         p->thread.io_bitmap_ptr = NULL;