Added a couple of includes as part of the 2.5.50 update.

arch/um/kernel/skas/include/uaccess.h

@@ -8,6 +8,7 @@
 
 #include "linux/string.h"
 #include "linux/sched.h"
+#include "linux/err.h"
 #include "asm/processor.h"
 #include "asm/pgtable.h"
 #include "asm/errno.h"

arch/um/kernel/tt/syscall_kern.c

@@ -9,6 +9,7 @@
 #include "asm/unistd.h"
 #include "asm/ptrace.h"
 #include "asm/uaccess.h"
+#include "asm/stat.h"
 #include "sysdep/syscalls.h"
 #include "kern_util.h"