[ARM] do_fork() now returns the PID.

arch/arm/kernel/sys_arm.c

@@ -238,9 +238,7 @@ asmlinkage int sys_ipc (uint call, int first, int second, int third, void *ptr,
  */
 asmlinkage int sys_fork(struct pt_regs *regs)
 {
-	struct task_struct *p;
-	p = do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
+	return do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
 }
 
 /* Clone a task - this clones the calling program thread.
@@ -248,8 +246,6 @@ asmlinkage int sys_fork(struct pt_regs *regs)
  */
 asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, struct pt_regs *regs)
 {
-	struct task_struct *p;
-
 	/*
 	 * We don't support SETTID / CLEARTID
 	 */
@@ -259,16 +255,12 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, struct
 	if (!newsp)
 		newsp = regs->ARM_sp;
 
-	p = do_fork(clone_flags & ~CLONE_IDLETASK, newsp, regs, 0, NULL, NULL);
-
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
+	return do_fork(clone_flags & ~CLONE_IDLETASK, newsp, regs, 0, NULL, NULL);
 }
 
 asmlinkage int sys_vfork(struct pt_regs *regs)
 {
-	struct task_struct *p;
-	p = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
 }
 
 /* sys_execve() executes a new program.