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, 211 insertions, 0 deletions

diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c
new file mode 100644
index 000000000..6cf410a92
--- /dev/null
+++ b/sound/usb/6fire/chip.c
@@ -0,0 +1,211 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Linux driver for TerraTec DMX 6Fire USB
+ *
+ * Main routines and module definitions.
+ *
+ * Author:	Torsten Schenk <torsten.schenk@zoho.com>
+ * Created:	Jan 01, 2011
+ * Copyright:	(C) Torsten Schenk
+ */
+
+#include "chip.h"
+#include "firmware.h"
+#include "pcm.h"
+#include "control.h"
+#include "comm.h"
+#include "midi.h"
+
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gfp.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>");
+MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver");
+MODULE_LICENSE("GPL v2");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */
+static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for the 6fire sound device");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for the 6fire sound device.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable the 6fire sound device.");
+
+static DEFINE_MUTEX(register_mutex);
+
+static void usb6fire_chip_abort(struct sfire_chip *chip)
+{
+	if (chip->pcm)
+		usb6fire_pcm_abort(chip);
+	if (chip->midi)
+		usb6fire_midi_abort(chip);
+	if (chip->comm)
+		usb6fire_comm_abort(chip);
+	if (chip->control)
+		usb6fire_control_abort(chip);
+}
+
+static void usb6fire_card_free(struct snd_card *card)
+{
+	struct sfire_chip *chip = card->private_data;
+
+	if (chip->pcm)
+		usb6fire_pcm_destroy(chip);
+	if (chip->midi)
+		usb6fire_midi_destroy(chip);
+	if (chip->comm)
+		usb6fire_comm_destroy(chip);
+	if (chip->control)
+		usb6fire_control_destroy(chip);
+}
+
+static int usb6fire_chip_probe(struct usb_interface *intf,
+			       const struct usb_device_id *usb_id)
+{
+	int ret;
+	int i;
+	struct sfire_chip *chip = NULL;
+	struct usb_device *device = interface_to_usbdev(intf);
+	int regidx = -1; /* index in module parameter array */
+	struct snd_card *card = NULL;
+
+	/* look if we already serve this card and return if so */
+	guard(mutex)(&register_mutex);
+	for (i = 0; i < SNDRV_CARDS; i++) {
+		if (chips[i] && chips[i]->dev == device) {
+			chips[i]->intf_count++;
+			usb_set_intfdata(intf, chips[i]);
+			return 0;
+		} else if (!chips[i] && regidx < 0)
+			regidx = i;
+	}
+	if (regidx < 0) {
+		dev_err(&intf->dev, "too many cards registered.\n");
+		return -ENODEV;
+	}
+
+	/* check, if firmware is present on device, upload it if not */
+	ret = usb6fire_fw_init(intf);
+	if (ret < 0)
+		return ret;
+	else if (ret == FW_NOT_READY) /* firmware update performed */
+		return 0;
+
+	/* if we are here, card can be registered in alsa. */
+	if (usb_set_interface(device, 0, 0) != 0) {
+		dev_err(&intf->dev, "can't set first interface.\n");
+		return -EIO;
+	}
+	ret = snd_card_new(&intf->dev, index[regidx], id[regidx],
+			   THIS_MODULE, sizeof(struct sfire_chip), &card);
+	if (ret < 0) {
+		dev_err(&intf->dev, "cannot create alsa card.\n");
+		return ret;
+	}
+	strscpy(card->driver, "6FireUSB");
+	strscpy(card->shortname, "TerraTec DMX6FireUSB");
+	sprintf(card->longname, "%s at %d:%d", card->shortname,
+			device->bus->busnum, device->devnum);
+
+	chip = card->private_data;
+	chip->dev = device;
+	chip->regidx = regidx;
+	chip->intf_count = 1;
+	chip->card = card;
+	card->private_free = usb6fire_card_free;
+
+	ret = usb6fire_comm_init(chip);
+	if (ret < 0)
+		goto destroy_chip;
+
+	ret = usb6fire_midi_init(chip);
+	if (ret < 0)
+		goto destroy_chip;
+
+	ret = usb6fire_pcm_init(chip);
+	if (ret < 0)
+		goto destroy_chip;
+
+	ret = usb6fire_control_init(chip);
+	if (ret < 0)
+		goto destroy_chip;
+
+	ret = snd_card_register(card);
+	if (ret < 0) {
+		dev_err(&intf->dev, "cannot register card.");
+		goto destroy_chip;
+	}
+
+	usb_set_intfdata(intf, chip);
+	chips[regidx] = chip;
+
+	return 0;
+
+destroy_chip:
+	chip->shutdown = true;
+	if (card)
+		snd_card_disconnect(card);
+	usb6fire_chip_abort(chip);
+	snd_card_free(card);
+	return ret;
+}
+
+static void usb6fire_chip_disconnect(struct usb_interface *intf)
+{
+	struct sfire_chip *chip;
+	struct snd_card *card;
+
+	guard(mutex)(&register_mutex);
+	chip = usb_get_intfdata(intf);
+	/* if !chip, fw upload has been performed */
+	if (!chip)
+		return;
+
+	chip->intf_count--;
+	if (chip->intf_count)
+		return;
+
+	chips[chip->regidx] = NULL;
+
+	/*
+	 * Save card pointer before teardown.
+	 * snd_card_free_when_closed() may free card (and
+	 * the embedded chip) immediately, so it must be
+	 * called last and chip must not be accessed after.
+	 */
+	card = chip->card;
+	chip->shutdown = true;
+	if (card)
+		snd_card_disconnect(card);
+	usb6fire_chip_abort(chip);
+	if (card)
+		snd_card_free_when_closed(card);
+}
+
+static const struct usb_device_id device_table[] = {
+	{
+		.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
+		.idVendor = 0x0ccd,
+		.idProduct = 0x0080
+	},
+	{}
+};
+
+MODULE_DEVICE_TABLE(usb, device_table);
+
+static struct usb_driver usb_driver = {
+	.name = "snd-usb-6fire",
+	.probe = usb6fire_chip_probe,
+	.disconnect = usb6fire_chip_disconnect,
+	.id_table = device_table,
+};
+
+module_usb_driver(usb_driver);