From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001
From: Kees Cook <kees+treewide@kernel.org>
Date: Wed, 2 Sep 2026 15:31:14 -0700
Subject: treewide: refresh kmalloc_obj() conversions

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
---
 drivers/gpio/gpio-twl6040.c | 118 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 drivers/gpio/gpio-twl6040.c

(limited to 'drivers/gpio/gpio-twl6040.c')

diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c
new file mode 100644
index 000000000..4ec9bcd40
--- /dev/null
+++ b/drivers/gpio/gpio-twl6040.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Access to GPOs on TWL6040 chip
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
+ * Authors:
+ *	Sergio Aguirre <saaguirre@ti.com>
+ *	Peter Ujfalusi <peter.ujfalusi@ti.com>
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kthread.h>
+#include <linux/irq.h>
+#include <linux/gpio/driver.h>
+#include <linux/platform_device.h>
+#include <linux/bitops.h>
+#include <linux/of.h>
+
+#include <linux/mfd/twl6040.h>
+
+static int twl6040gpo_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct twl6040 *twl6040 = gpiochip_get_data(chip);
+	int ret = 0;
+
+	ret = twl6040_reg_read(twl6040, TWL6040_REG_GPOCTL);
+	if (ret < 0)
+		return ret;
+
+	return !!(ret & BIT(offset));
+}
+
+static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+	return GPIO_LINE_DIRECTION_OUT;
+}
+
+static int twl6040gpo_set(struct gpio_chip *chip, unsigned int offset,
+			  int value)
+{
+	struct twl6040 *twl6040 = gpiochip_get_data(chip);
+	int ret;
+	u8 gpoctl;
+
+	ret = twl6040_reg_read(twl6040, TWL6040_REG_GPOCTL);
+	if (ret < 0)
+		return ret;
+
+	if (value)
+		gpoctl = ret | BIT(offset);
+	else
+		gpoctl = ret & ~BIT(offset);
+
+	return twl6040_reg_write(twl6040, TWL6040_REG_GPOCTL, gpoctl);
+}
+
+static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned int offset,
+				    int value)
+{
+	/* This only drives GPOs, and can't change direction */
+	return twl6040gpo_set(chip, offset, value);
+}
+
+static struct gpio_chip twl6040gpo_chip = {
+	.label			= "twl6040",
+	.owner			= THIS_MODULE,
+	.get			= twl6040gpo_get,
+	.direction_output	= twl6040gpo_direction_out,
+	.get_direction		= twl6040gpo_get_direction,
+	.set			= twl6040gpo_set,
+	.can_sleep		= true,
+};
+
+/*----------------------------------------------------------------------*/
+
+static int gpo_twl6040_probe(struct platform_device *pdev)
+{
+	struct device *twl6040_core_dev = pdev->dev.parent;
+	struct twl6040 *twl6040 = dev_get_drvdata(twl6040_core_dev);
+	int ret;
+
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
+	twl6040gpo_chip.base = -1;
+
+	if (twl6040_get_revid(twl6040) < TWL6041_REV_ES2_0)
+		twl6040gpo_chip.ngpio = 3; /* twl6040 have 3 GPO */
+	else
+		twl6040gpo_chip.ngpio = 1; /* twl6041 have 1 GPO */
+
+	twl6040gpo_chip.parent = &pdev->dev;
+
+	ret = devm_gpiochip_add_data(&pdev->dev, &twl6040gpo_chip, twl6040);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);
+		twl6040gpo_chip.ngpio = 0;
+	}
+
+	return ret;
+}
+
+/* Note:  this hardware lives inside an I2C-based multi-function device. */
+MODULE_ALIAS("platform:twl6040-gpo");
+
+static struct platform_driver gpo_twl6040_driver = {
+	.driver = {
+		.name	= "twl6040-gpo",
+	},
+	.probe		= gpo_twl6040_probe,
+};
+
+module_platform_driver(gpo_twl6040_driver);
+
+MODULE_AUTHOR("Texas Instruments, Inc.");
+MODULE_DESCRIPTION("GPO interface for TWL6040");
+MODULE_LICENSE("GPL");
-- 
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