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, 99 insertions, 0 deletions

diff --git a/drivers/media/i2c/uda1342.c b/drivers/media/i2c/uda1342.c
new file mode 100644
index 000000000..437726788
--- /dev/null
+++ b/drivers/media/i2c/uda1342.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/i2c/uda1342.h>
+#include <linux/slab.h>
+
+static int write_reg(struct i2c_client *client, int reg, int value)
+{
+	/* UDA1342 wants MSB first, but SMBus sends LSB first */
+	i2c_smbus_write_word_data(client, reg, swab16(value));
+	return 0;
+}
+
+static int uda1342_s_routing(struct v4l2_subdev *sd,
+		u32 input, u32 output, u32 config)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	switch (input) {
+	case UDA1342_IN1:
+		write_reg(client, 0x00, 0x1241); /* select input 1 */
+		break;
+	case UDA1342_IN2:
+		write_reg(client, 0x00, 0x1441); /* select input 2 */
+		break;
+	default:
+		v4l2_err(sd, "input %d not supported\n", input);
+		break;
+	}
+	return 0;
+}
+
+static const struct v4l2_subdev_audio_ops uda1342_audio_ops = {
+	.s_routing = uda1342_s_routing,
+};
+
+static const struct v4l2_subdev_ops uda1342_ops = {
+	.audio = &uda1342_audio_ops,
+};
+
+static int uda1342_probe(struct i2c_client *client)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	struct v4l2_subdev *sd;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	dev_dbg(&client->dev, "initializing UDA1342 at address %d on %s\n",
+		client->addr, adapter->name);
+
+	sd = devm_kzalloc(&client->dev, sizeof(*sd), GFP_KERNEL);
+	if (sd == NULL)
+		return -ENOMEM;
+
+	v4l2_i2c_subdev_init(sd, client, &uda1342_ops);
+
+	write_reg(client, 0x00, 0x8000); /* reset registers */
+	write_reg(client, 0x00, 0x1241); /* select input 1 */
+
+	v4l_info(client, "chip found @ 0x%02x (%s)\n",
+			client->addr << 1, client->adapter->name);
+
+	return 0;
+}
+
+static void uda1342_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+}
+
+static const struct i2c_device_id uda1342_id[] = {
+	{ .name = "uda1342" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, uda1342_id);
+
+static struct i2c_driver uda1342_driver = {
+	.driver = {
+		.name	= "uda1342",
+	},
+	.probe		= uda1342_probe,
+	.remove		= uda1342_remove,
+	.id_table	= uda1342_id,
+};
+
+module_i2c_driver(uda1342_driver);
+
+MODULE_DESCRIPTION("Philips UDA1342 audio codec driver");
+MODULE_LICENSE("GPL v2");