[PATCH] kmemdup: some users

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 8c190ca..96cd023 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -425,13 +425,12 @@
 
 	tsk = current;
 	if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
-		p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+		p->thread.io_bitmap_ptr = kmemdup(tsk->thread.io_bitmap_ptr,
+						IO_BITMAP_BYTES, GFP_KERNEL);
 		if (!p->thread.io_bitmap_ptr) {
 			p->thread.io_bitmap_max = 0;
 			return -ENOMEM;
 		}
-		memcpy(p->thread.io_bitmap_ptr, tsk->thread.io_bitmap_ptr,
-			IO_BITMAP_BYTES);
 		set_tsk_thread_flag(p, TIF_IO_BITMAP);
 	}