PTRACE_PEEKDATA consolidation

Identical implementations of PTRACE_PEEKDATA go into generic_ptrace_peekdata()
function.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index 3c36c2d..1043fdc 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -153,7 +153,6 @@
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
-	unsigned long tmp;
 	int ret;
 
 	pr_debug("arch_ptrace(%ld, %d, %#lx, %#lx)\n",
@@ -166,11 +165,7 @@
 	/* Read the word at location addr in the child process */
 	case PTRACE_PEEKTEXT:
 	case PTRACE_PEEKDATA:
-		ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-		if (ret == sizeof(tmp))
-			ret = put_user(tmp, (unsigned long __user *)data);
-		else
-			ret = -EIO;
+		ret = generic_ptrace_peekdata(child, addr, data);
 		break;
 
 	case PTRACE_PEEKUSR: