ptrace: cleanup arch_ptrace() and friends on Blackfin

Change signature of get/put_reg() according to the change of arch_ptrace()
and remove unnecessary castings.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 6 deletions

diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 8e3083ccd88a..75089f80855d 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -38,12 +38,13 @@
  * Get contents of register REGNO in task TASK.
  */
 static inline long
-get_reg(struct task_struct *task, long regno, unsigned long __user *datap)
+get_reg(struct task_struct *task, unsigned long regno,
+        unsigned long __user *datap)
 {
         long tmp;
         struct pt_regs *regs = task_pt_regs(task);
 
-        if (regno & 3 || regno > PT_LAST_PSEUDO || regno < 0)
+        if (regno & 3 || regno > PT_LAST_PSEUDO)
                 return -EIO;
 
         switch (regno) {
@@ -74,11 +75,11 @@ get_reg(struct task_struct *task, long regno, unsigned long __user *datap)
  * Write contents of register REGNO in task TASK.
  */
 static inline int
-put_reg(struct task_struct *task, long regno, unsigned long data)
+put_reg(struct task_struct *task, unsigned long regno, unsigned long data)
 {
         struct pt_regs *regs = task_pt_regs(task);
 
-        if (regno & 3 || regno > PT_LAST_PSEUDO || regno < 0)
+        if (regno & 3 || regno > PT_LAST_PSEUDO)
                 return -EIO;
 
         switch (regno) {
@@ -369,14 +370,14 @@ long arch_ptrace(struct task_struct *child, long request,
                 return copy_regset_to_user(child, &user_bfin_native_view,
                                            REGSET_GENERAL,
                                            0, sizeof(struct pt_regs),
-                                           (void __user *)data);
+                                           datap);
 
         case PTRACE_SETREGS:
                 pr_debug("ptrace: PTRACE_SETREGS\n");
                 return copy_regset_from_user(child, &user_bfin_native_view,
                                              REGSET_GENERAL,
                                              0, sizeof(struct pt_regs),
-                                             (const void __user *)data);
+                                             datap);
 
         case_default:
         default: