drivers/block/floppy.c: convert raw_cmd_copyin from while(1) to label: goto

Reduces indent.
Makes a bit more readable and intelligible.
Return value now at bottom of function.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/block/floppy.c

@@ -3126,6 +3126,7 @@ static inline int raw_cmd_copyout(int cmd, void __user *param,
 		}
 		ptr = ptr->next;
 	}
+
 	return 0;
 }
 
@@ -3156,7 +3157,8 @@ static inline int raw_cmd_copyin(int cmd, void __user *param,
 	int i;
 
 	*rcmd = NULL;
-	while (1) {
+
+loop:
 	ptr = kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER);
 	if (!ptr)
 		return -ENOMEM;
@@ -3186,24 +3188,25 @@ static inline int raw_cmd_copyin(int cmd, void __user *param,
 	if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
 		if (ptr->length <= 0)
 			return -EINVAL;
-			ptr->kernel_data =
-			    (char *)fd_dma_mem_alloc(ptr->length);
+		ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
 		fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
 		if (!ptr->kernel_data)
 			return -ENOMEM;
 		ptr->buffer_length = ptr->length;
 	}
 	if (ptr->flags & FD_RAW_WRITE) {
-			ret = fd_copyin(ptr->data, ptr->kernel_data,
-					ptr->length);
+		ret = fd_copyin(ptr->data, ptr->kernel_data, ptr->length);
 		if (ret)
 			return ret;
 	}
+
+	if (ptr->flags & FD_RAW_MORE) {
 		rcmd = &(ptr->next);
-		if (!(ptr->flags & FD_RAW_MORE))
-			return 0;
 		ptr->rate &= 0x43;
+		goto loop;
 	}
+
+	return 0;
 }
 
 static int raw_cmd_ioctl(int cmd, void __user *param)