treewide: refresh kmalloc_obj() conversionsgrafted

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>

1 files changed, 169 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-adp5520.c b/drivers/gpio/gpio-adp5520.c
new file mode 100644
index 000000000..6305c8b7d
--- /dev/null
+++ b/drivers/gpio/gpio-adp5520.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * GPIO driver for Analog Devices ADP5520 MFD PMICs
+ *
+ * Copyright 2009 Analog Devices Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/adp5520.h>
+#include <linux/gpio/driver.h>
+
+struct adp5520_gpio {
+	struct device *master;
+	struct gpio_chip gpio_chip;
+	unsigned char lut[ADP5520_MAXGPIOS];
+	unsigned long output;
+};
+
+static int adp5520_gpio_get_value(struct gpio_chip *chip, unsigned off)
+{
+	struct adp5520_gpio *dev;
+	uint8_t reg_val;
+
+	dev = gpiochip_get_data(chip);
+
+	/*
+	 * There are dedicated registers for GPIO IN/OUT.
+	 * Make sure we return the right value, even when configured as output
+	 */
+
+	if (test_bit(off, &dev->output))
+		adp5520_read(dev->master, ADP5520_GPIO_OUT, &reg_val);
+	else
+		adp5520_read(dev->master, ADP5520_GPIO_IN, &reg_val);
+
+	return !!(reg_val & dev->lut[off]);
+}
+
+static int adp5520_gpio_set_value(struct gpio_chip *chip,
+				  unsigned int off, int val)
+{
+	struct adp5520_gpio *dev;
+	dev = gpiochip_get_data(chip);
+
+	if (val)
+		return adp5520_set_bits(dev->master, ADP5520_GPIO_OUT,
+					dev->lut[off]);
+	else
+		return adp5520_clr_bits(dev->master, ADP5520_GPIO_OUT,
+					dev->lut[off]);
+}
+
+static int adp5520_gpio_direction_input(struct gpio_chip *chip, unsigned off)
+{
+	struct adp5520_gpio *dev;
+	dev = gpiochip_get_data(chip);
+
+	clear_bit(off, &dev->output);
+
+	return adp5520_clr_bits(dev->master, ADP5520_GPIO_CFG_2,
+				dev->lut[off]);
+}
+
+static int adp5520_gpio_direction_output(struct gpio_chip *chip,
+		unsigned off, int val)
+{
+	struct adp5520_gpio *dev;
+	int ret = 0;
+	dev = gpiochip_get_data(chip);
+
+	set_bit(off, &dev->output);
+
+	if (val)
+		ret |= adp5520_set_bits(dev->master, ADP5520_GPIO_OUT,
+					dev->lut[off]);
+	else
+		ret |= adp5520_clr_bits(dev->master, ADP5520_GPIO_OUT,
+					dev->lut[off]);
+
+	ret |= adp5520_set_bits(dev->master, ADP5520_GPIO_CFG_2,
+					dev->lut[off]);
+
+	return ret;
+}
+
+static int adp5520_gpio_probe(struct platform_device *pdev)
+{
+	struct adp5520_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct adp5520_gpio *dev;
+	struct gpio_chip *gc;
+	int ret, i, gpios;
+	unsigned char ctl_mask = 0;
+
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "missing platform data\n");
+		return -ENODEV;
+	}
+
+	if (pdev->id != ID_ADP5520) {
+		dev_err(&pdev->dev, "only ADP5520 supports GPIO\n");
+		return -ENODEV;
+	}
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL)
+		return -ENOMEM;
+
+	dev->master = pdev->dev.parent;
+
+	for (gpios = 0, i = 0; i < ADP5520_MAXGPIOS; i++)
+		if (pdata->gpio_en_mask & (1 << i))
+			dev->lut[gpios++] = 1 << i;
+
+	if (gpios < 1)
+		return -EINVAL;
+
+	gc = &dev->gpio_chip;
+	gc->direction_input  = adp5520_gpio_direction_input;
+	gc->direction_output = adp5520_gpio_direction_output;
+	gc->get = adp5520_gpio_get_value;
+	gc->set = adp5520_gpio_set_value;
+	gc->can_sleep = true;
+
+	gc->base = pdata->gpio_start;
+	gc->ngpio = gpios;
+	gc->label = pdev->name;
+	gc->owner = THIS_MODULE;
+
+	ret = adp5520_clr_bits(dev->master, ADP5520_GPIO_CFG_1,
+		pdata->gpio_en_mask);
+
+	if (pdata->gpio_en_mask & ADP5520_GPIO_C3)
+		ctl_mask |= ADP5520_C3_MODE;
+
+	if (pdata->gpio_en_mask & ADP5520_GPIO_R3)
+		ctl_mask |= ADP5520_R3_MODE;
+
+	if (ctl_mask)
+		ret = adp5520_set_bits(dev->master, ADP5520_LED_CONTROL,
+			ctl_mask);
+
+	ret |= adp5520_set_bits(dev->master, ADP5520_GPIO_PULLUP,
+		pdata->gpio_pullup_mask);
+
+	if (ret) {
+		dev_err(&pdev->dev, "failed to write\n");
+		return ret;
+	}
+
+	return devm_gpiochip_add_data(&pdev->dev, &dev->gpio_chip, dev);
+}
+
+static struct platform_driver adp5520_gpio_driver = {
+	.driver	= {
+		.name	= "adp5520-gpio",
+	},
+	.probe		= adp5520_gpio_probe,
+};
+
+module_platform_driver(adp5520_gpio_driver);
+
+MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
+MODULE_DESCRIPTION("GPIO ADP5520 Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:adp5520-gpio");