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serial: Use ARRAY_SIZE() with iso7816 reserved array

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Instead of a literal, size the for loop iteration based on the actual
array using ARRAY_SIZE().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230309080923.11778-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2023-03-09 10:09:16 +02:00 committed by Greg Kroah-Hartman
parent 5406dc0488
commit eff37b5ea3
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/serial_core.c
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@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/console.h>
#include <linux/gpio/consumer.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
@ -1491,7 +1492,7 @@ static int uart_set_iso7816_config(struct uart_port *port,
* There are 5 words reserved for future use. Check that userspace
* doesn't put stuff in there to prevent breakages in the future.
*/
for (i = 0; i < 5; i++)
for (i = 0; i < ARRAY_SIZE(iso7816.reserved); i++)
if (iso7816.reserved[i])
return -EINVAL;