From: Thorsten Blum <blum@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>
Cc: Thorsten Blum <blum@kernel.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Subject: [PATCH] tty: use isdigit() in tty_find_polling_driver()
Date: Fri, 6 Nov 2026 10:01:23 +0100 [thread overview]
Message-ID: <20261106090122.2265-2-blum@kernel.org> (raw)
Use isdigit() to replace the open-coded implementation.
Signed-off-by: Thorsten Blum <blum@kernel.org>
---
drivers/tty/tty_io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 1a6c8a1bc764..3575310c72e0 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -383,7 +383,7 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line)
char *str, *stp;
for (str = name; *str; str++)
- if ((*str >= '0' && *str <= '9') || *str == ',')
+ if (isdigit(*str) || *str == ',')
break;
if (!*str)
return NULL;
reply other threads:[~2026-11-06 9:01 UTC|newest]
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