From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1DCE53CA6D; Wed, 14 Oct 2026 14:31:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791988270; cv=none; b=cp2F2dh/7xO1BOQjTeh8eCb4lfBfE4Rj4EPX5znMpd3JKDjPrjRYo2z0ImAy1tJ85emEXjRfrULE7pasviFLYAq2U2m8ftYSxtwZWcyZkpJkuGdz1yyq30ioTUobqvBkS63btMnJMcNbkZheTAQB+asWidbqclM/uIoAZhGuOb0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791988270; c=relaxed/simple; bh=hyilG20mp+XnLj/3lAEhVhlkR8b20X2hA3TZAObYtSQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cJdEs2rBvXdb/+2sQub3T460uuL7fIfL8xCGNXd+exAbVikRDibRjOiMD4tkfuu7PUtmWZPequq1eeSt/NEhSujqEEk+1ZX/bKWMzMAruUWSQ6iphlhJvXc0hXVBh04DYyp97nHUqtPRyAUirgpR3g/K7jw3HLxkwWGdRSCm2o8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nvBbCT2e; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nvBbCT2e" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E78AD1F000C4; Wed, 14 Oct 2026 14:31:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791988269; bh=w+RKbY8SslnL+CJpoN7wytSAuSNSgN6XS5KDsZ/4/v8=; h=From:To:Cc:Subject:Date; b=nvBbCT2eSrtikZX+/vZ4QzZEkQZY+ug71dspcf7O2v6IFSPewBjSqbOqyR5IyXzyW ni6WbgdImcirxfJYziIRxklRruJCoKiAXo/X0CaVF3rPVsOuQ3H1pKpvNzMyDm9g+H zfR/3RQLsNMXGrOgLRb/I9PKCS35kS0WltifcKW0VQhdG8cMBUmTpDPtmA180cskSZ OslpSagUHwMrDowBZhFz0wNpkfkj3BKPEVYk9dYQX0eqysPdyPfBqsihrxzfNH7mOR 5v5Z5C1mSKTs6KMTLeqKyknw9NUqQvzHLPR1JNBHewWqAATAzM1zHRA5nT2drgR2GU umYu6iUlEYyKQ== From: Thorsten Blum To: Greg Kroah-Hartman , Jiri Slaby , Hugo Villeneuve , Johan Hovold , Karl Mehltretter , John Ogness , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig=20=28The=20Capable=20Hub=29?= Cc: Thorsten Blum , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: [PATCH 1/2] serial: core: Use isdigit() in uart_parse_options() Date: Wed, 14 Oct 2026 16:30:32 +0200 Message-ID: <20261014143034.104950-3-blum@kernel.org> X-Mailer: git-send-email 2.56.0 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=886; i=blum@kernel.org; h=from:subject; bh=hyilG20mp+XnLj/3lAEhVhlkR8b20X2hA3TZAObYtSQ=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFnnJ3EHzG2I4zYr/NL6cJbZ1LnO/BNdg0Ifvfk8VUG+p jnRqN27o5SFQYyLQVZMkeXBrB8zfEtrKjeZROyEmcPKBDKEgYtTACYi1MLIMHtDS26N5lfvrYn/ t4o4Hr/ygrvCnH2raqrQUxsr81dyhYwMN+9PbyxbpX5k7UR33hkzbFQmJNopVDDymW79O6t0lko TNwA= X-Developer-Key: i=blum@kernel.org; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit Use isdigit() to replace the open-coded implementation. Signed-off-by: Thorsten Blum --- drivers/tty/serial/serial_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 6332ed545c89..6509f65dec36 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -2211,7 +2212,7 @@ uart_parse_options(const char *options, int *baud, int *parity, const char *s = options; *baud = simple_strtoul(s, NULL, 10); - while (*s >= '0' && *s <= '9') + while (isdigit(*s)) s++; if (*s) *parity = *s++;