1 files changed, 5 insertions, 3 deletions

diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index dc03ffc8174a..6a8e0cc5c57d 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -39,6 +39,7 @@
 #include <linux/uaccess.h>
 #include <asm/asm-offsets.h>
 #include <asm/cacheflush.h>
+#include <asm/syscall.h>
 #include <asm/io.h>
 
 /* Returns the address where the register at REG_OFFS in P is stashed away. */
@@ -73,7 +74,8 @@ static microblaze_reg_t *reg_save_addr(unsigned reg_offs,
         return (microblaze_reg_t *)((char *)regs + reg_offs);
 }
 
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request,
+                 unsigned long addr, unsigned long data)
 {
         int rval;
         unsigned long val = 0;
@@ -99,7 +101,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         } else {
                                 rval = -EIO;
                         }
-                } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
+                } else if (addr < PT_SIZE && (addr & 0x3) == 0) {
                         microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
                         if (request == PTRACE_PEEKUSR)
                                 val = *reg_addr;
@@ -122,7 +124,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         rval = -EIO;
 
                 if (rval == 0 && request == PTRACE_PEEKUSR)
-                        rval = put_user(val, (unsigned long *)data);
+                        rval = put_user(val, (unsigned long __user *)data);
                 break;
         default:
                 rval = ptrace_request(child, request, addr, data);