From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file

---
 kernel/drivers/pinctrl/pinctrl-single.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/pinctrl/pinctrl-single.c b/kernel/drivers/pinctrl/pinctrl-single.c
index d139cd9..22e4719 100644
--- a/kernel/drivers/pinctrl/pinctrl-single.c
+++ b/kernel/drivers/pinctrl/pinctrl-single.c
@@ -372,6 +372,8 @@
 	if (!pcs->fmask)
 		return 0;
 	function = pinmux_generic_get_function(pctldev, fselector);
+	if (!function)
+		return -EINVAL;
 	func = function->data;
 	if (!func)
 		return -EINVAL;

--
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