From 9f0fc191371843c4fc000a226b0a26b6c059aacd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 19:40:19 +0200 Subject: Merging upstream version 6.7.7. Signed-off-by: Daniel Baumann --- drivers/parport/parport_gsc.c | 2 +- drivers/parport/procfs.c | 81 +++++++++++-------------------------------- drivers/parport/share.c | 26 ++++---------- 3 files changed, 28 insertions(+), 81 deletions(-) (limited to 'drivers/parport') diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c index 5e4475254b..c7e18382dc 100644 --- a/drivers/parport/parport_gsc.c +++ b/drivers/parport/parport_gsc.c @@ -392,7 +392,7 @@ static struct parisc_driver parport_driver __refdata = { .remove = __exit_p(parport_remove_chip), }; -int parport_gsc_init(void) +static int parport_gsc_init(void) { return register_parisc_driver(&parport_driver); } diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c index 4e5b972c3e..bd388560ed 100644 --- a/drivers/parport/procfs.c +++ b/drivers/parport/procfs.c @@ -32,13 +32,6 @@ #define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ) #define PARPORT_MIN_SPINTIME_VALUE 1 #define PARPORT_MAX_SPINTIME_VALUE 1000 -/* - * PARPORT_BASE_* is the size of the known parts of the sysctl path - * in dev/partport/%s/devices/%s. "dev/parport/"(12), "/devices/"(9 - * and null char(1). - */ -#define PARPORT_BASE_PATH_SIZE 13 -#define PARPORT_BASE_DEVICES_PATH_SIZE 22 static int do_active_device(struct ctl_table *table, int write, void *result, size_t *lenp, loff_t *ppos) @@ -259,8 +252,12 @@ PARPORT_MAX_SPINTIME_VALUE; struct parport_sysctl_table { struct ctl_table_header *port_header; struct ctl_table_header *devices_header; - struct ctl_table vars[12]; - struct ctl_table device_dir[2]; +#ifdef CONFIG_PARPORT_1284 + struct ctl_table vars[10]; +#else + struct ctl_table vars[5]; +#endif /* IEEE 1284 support */ + struct ctl_table device_dir[1]; }; static const struct parport_sysctl_table parport_sysctl_template = { @@ -341,7 +338,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { .proc_handler = do_autoprobe }, #endif /* IEEE 1284 support */ - {} }, { { @@ -351,19 +347,14 @@ static const struct parport_sysctl_table parport_sysctl_template = { .mode = 0444, .proc_handler = do_active_device }, - {} }, }; struct parport_device_sysctl_table { struct ctl_table_header *sysctl_header; - struct ctl_table vars[2]; - struct ctl_table device_dir[2]; - struct ctl_table devices_root_dir[2]; - struct ctl_table port_dir[2]; - struct ctl_table parport_dir[2]; - struct ctl_table dev_dir[2]; + struct ctl_table vars[1]; + struct ctl_table device_dir[1]; }; static const struct parport_device_sysctl_table @@ -379,7 +370,6 @@ parport_device_sysctl_template = { .extra1 = (void*) &parport_min_timeslice_value, .extra2 = (void*) &parport_max_timeslice_value }, - {} }, { { @@ -388,17 +378,13 @@ parport_device_sysctl_template = { .maxlen = 0, .mode = 0555, }, - {} } }; struct parport_default_sysctl_table { struct ctl_table_header *sysctl_header; - struct ctl_table vars[3]; - struct ctl_table default_dir[2]; - struct ctl_table parport_dir[2]; - struct ctl_table dev_dir[2]; + struct ctl_table vars[2]; }; static struct parport_default_sysctl_table @@ -423,7 +409,6 @@ parport_default_sysctl_table = { .extra1 = (void*) &parport_min_spintime_value, .extra2 = (void*) &parport_max_spintime_value }, - {} } }; @@ -431,8 +416,7 @@ int parport_proc_register(struct parport *port) { struct parport_sysctl_table *t; char *tmp_dir_path; - size_t tmp_path_len, port_name_len; - int bytes_written, i, err = 0; + int i, err = 0; t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL); if (t == NULL) @@ -443,38 +427,28 @@ int parport_proc_register(struct parport *port) t->vars[0].data = &port->spintime; for (i = 0; i < 5; i++) { t->vars[i].extra1 = port; +#ifdef CONFIG_PARPORT_1284 t->vars[5 + i].extra2 = &port->probe_info[i]; +#endif /* IEEE 1284 support */ } - port_name_len = strnlen(port->name, PARPORT_NAME_MAX_LEN); - /* - * Allocate a buffer for two paths: dev/parport/PORT and dev/parport/PORT/devices. - * We calculate for the second as that will give us enough for the first. - */ - tmp_path_len = PARPORT_BASE_DEVICES_PATH_SIZE + port_name_len; - tmp_dir_path = kzalloc(tmp_path_len, GFP_KERNEL); + tmp_dir_path = kasprintf(GFP_KERNEL, "dev/parport/%s/devices", port->name); if (!tmp_dir_path) { err = -ENOMEM; goto exit_free_t; } - bytes_written = snprintf(tmp_dir_path, tmp_path_len, - "dev/parport/%s/devices", port->name); - if (tmp_path_len <= bytes_written) { - err = -ENOENT; - goto exit_free_tmp_dir_path; - } t->devices_header = register_sysctl(tmp_dir_path, t->device_dir); if (t->devices_header == NULL) { err = -ENOENT; goto exit_free_tmp_dir_path; } - tmp_path_len = PARPORT_BASE_PATH_SIZE + port_name_len; - bytes_written = snprintf(tmp_dir_path, tmp_path_len, - "dev/parport/%s", port->name); - if (tmp_path_len <= bytes_written) { - err = -ENOENT; + kfree(tmp_dir_path); + + tmp_dir_path = kasprintf(GFP_KERNEL, "dev/parport/%s", port->name); + if (!tmp_dir_path) { + err = -ENOMEM; goto unregister_devices_h; } @@ -514,34 +488,22 @@ int parport_proc_unregister(struct parport *port) int parport_device_proc_register(struct pardevice *device) { - int bytes_written, err = 0; struct parport_device_sysctl_table *t; struct parport * port = device->port; - size_t port_name_len, device_name_len, tmp_dir_path_len; char *tmp_dir_path; + int err = 0; t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL); if (t == NULL) return -ENOMEM; - port_name_len = strnlen(port->name, PARPORT_NAME_MAX_LEN); - device_name_len = strnlen(device->name, PATH_MAX); - /* Allocate a buffer for two paths: dev/parport/PORT/devices/DEVICE. */ - tmp_dir_path_len = PARPORT_BASE_DEVICES_PATH_SIZE + port_name_len + device_name_len; - tmp_dir_path = kzalloc(tmp_dir_path_len, GFP_KERNEL); + tmp_dir_path = kasprintf(GFP_KERNEL, "dev/parport/%s/devices/%s", port->name, device->name); if (!tmp_dir_path) { err = -ENOMEM; goto exit_free_t; } - bytes_written = snprintf(tmp_dir_path, tmp_dir_path_len, "dev/parport/%s/devices/%s", - port->name, device->name); - if (tmp_dir_path_len <= bytes_written) { - err = -ENOENT; - goto exit_free_path; - } - t->vars[0].data = &device->timeslice; t->sysctl_header = register_sysctl(tmp_dir_path, t->vars); @@ -554,9 +516,6 @@ int parport_device_proc_register(struct pardevice *device) kfree(tmp_dir_path); return 0; -exit_free_path: - kfree(tmp_dir_path); - exit_free_t: kfree(t); diff --git a/drivers/parport/share.c b/drivers/parport/share.c index 2d46b1d4fd..e21831d933 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -361,7 +361,6 @@ static void free_port(struct device *dev) kfree(port->probe_info[d].description); } - kfree(port->name); kfree(port); } @@ -438,7 +437,6 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma, struct parport *tmp; int num; int device; - char *name; int ret; tmp = kzalloc(sizeof(struct parport), GFP_KERNEL); @@ -450,13 +448,9 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma, tmp->irq = irq; tmp->dma = dma; tmp->muxport = tmp->daisy = tmp->muxsel = -1; - tmp->modes = 0; INIT_LIST_HEAD(&tmp->list); - tmp->devices = tmp->cad = NULL; - tmp->flags = 0; tmp->ops = ops; tmp->physport = tmp; - memset(tmp->probe_info, 0, 5 * sizeof(struct parport_device_info)); rwlock_init(&tmp->cad_lock); spin_lock_init(&tmp->waitlist_lock); spin_lock_init(&tmp->pardevice_lock); @@ -465,19 +459,15 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma, sema_init(&tmp->ieee1284.irq, 0); tmp->spintime = parport_default_spintime; atomic_set(&tmp->ref_count, 1); - INIT_LIST_HEAD(&tmp->full_list); - name = kmalloc(PARPORT_NAME_MAX_LEN, GFP_KERNEL); - if (!name) { - kfree(tmp); - return NULL; - } /* Search for the lowest free parport number. */ spin_lock(&full_list_lock); - for (l = all_ports.next, num = 0; l != &all_ports; l = l->next, num++) { + num = 0; + list_for_each(l, &all_ports) { struct parport *p = list_entry(l, struct parport, full_list); - if (p->number != num) + + if (p->number != num++) break; } tmp->portnum = tmp->number = num; @@ -487,19 +477,17 @@ struct parport *parport_register_port(unsigned long base, int irq, int dma, /* * Now that the portnum is known finish doing the Init. */ - sprintf(name, "parport%d", tmp->portnum = tmp->number); - tmp->name = name; + dev_set_name(&tmp->bus_dev, "parport%d", tmp->portnum); tmp->bus_dev.bus = &parport_bus_type; tmp->bus_dev.release = free_port; - dev_set_name(&tmp->bus_dev, name); tmp->bus_dev.type = &parport_device_type; + tmp->name = dev_name(&tmp->bus_dev); + for (device = 0; device < 5; device++) /* assume the worst */ tmp->probe_info[device].class = PARPORT_CLASS_LEGACY; - tmp->waithead = tmp->waittail = NULL; - ret = device_register(&tmp->bus_dev); if (ret) { put_device(&tmp->bus_dev); -- cgit v1.2.3