Atari keyboard: incorporate additional review comments

Atari keyboard: incorporate additional review comments:
o Kill reference to source file name
o Return error value from input_register_device() instead of -ENOMEM

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Cc: Dmitry Torokhov <[e-mail]>
Cc: Michael Schmitz <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/m68k/atari/atakeyb.c

···
 /*
- * linux/arch/m68k/atari/atakeyb.c
- *
  * Atari Keyboard driver for 680x0 Linux
  *
  * This file is subject to the terms and conditions of the GNU General Public

drivers/input/keyboard/atakbd.c

···
 
 static int __init atakbd_init(void)
 {
-	int i;
+	int i, error;
 
 	if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
 		return -EIO;
···
 	}
 
 	/* error check */
-	if (input_register_device(atakbd_dev)) {
+	error = input_register_device(atakbd_dev);
+	if (error) {
 		input_free_device(atakbd_dev);
-		return -ENOMEM;
+		return error;
 	}
 
 	atari_input_keyboard_interrupt_hook = atakbd_interrupt;