small changes to do_execve2

mm/memory.c

@@ -426,14 +426,13 @@ int do_execve2(unsigned long * eip,long tmp,char * filename,
 	unsigned long page;
 	int block,i;
 	unsigned long address=current->start_code;
-	
+	//this part comes from do_no_page as achievement of immediate loading of cs and ds
 	while(address<=current->brk+current->start_code)
 	{
-		
 		address &= 0xfffff000;
 		temp = address - current->start_code;
 		if (share_page(temp))
-			return;
+			return -1;
 		if (!(page = get_free_page()))
 			oom();
 		block = 1 + temp/BLOCK_SIZE;
@@ -444,8 +443,6 @@ int do_execve2(unsigned long * eip,long tmp,char * filename,
 		{
 			free_page(page);
 			oom();
-			printk("error");
-			return -1;
 		}
 		address+=PAGE_SIZE;
 	}