From: Thorsten Blum <blum@kernel.org>
To: Johan Hovold <johan@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thorsten Blum <blum@kernel.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] USB: serial: console: use isdigit() in usb_console_setup()
Date: Fri, 6 Nov 2026 10:03:05 +0100 [thread overview]
Message-ID: <20261106090304.2410-2-blum@kernel.org> (raw)
Use isdigit() to replace the open-coded implementation.
Signed-off-by: Thorsten Blum <blum@kernel.org>
---
drivers/usb/serial/console.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 29f09190846e..25ea57c8fd3f 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/console.h>
+#include <linux/ctype.h>
#include <linux/serial.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
@@ -70,7 +71,7 @@ static int usb_console_setup(struct console *co, char *options)
if (options) {
baud = simple_strtoul(options, NULL, 10);
s = options;
- while (*s >= '0' && *s <= '9')
+ while (isdigit(*s))
s++;
if (*s)
parity = *s++;
next reply other threads:[~2026-11-06 9:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 9:03 Thorsten Blum [this message]
2026-11-06 9:05 ` [PATCH] USB: serial: console: use isdigit() in usb_console_setup() sashiko-bot
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