diff options
| author |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2023-10-05 15:33:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2023-10-07 11:18:48 +0200 |
| commit | 3abe1144ed548cded0595163e6f39e3c7d635c56 (patch) | |
| tree | ede144b2a7a75ddee1ba12216813a370428d453f /drivers/tty/vt | |
| parent | tty: Restrict access to TIOCLINUX' copy-and-paste subcommands (diff) | |
| download | linux-3abe1144ed548cded0595163e6f39e3c7d635c56.tar.gz linux-3abe1144ed548cded0595163e6f39e3c7d635c56.tar.bz2 linux-3abe1144ed548cded0595163e6f39e3c7d635c56.zip | |
tty: vt: make vtconsole_class constant
Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.
Cc: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/2023100546-humbly-prologue-e58c@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt')
| -rw-r--r-- | drivers/tty/vt/vt.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index e3bb498a7036..156efda7c80d 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -3571,7 +3571,9 @@ int __init vty_init(const struct file_operations *console_fops) return 0; } -static struct class *vtconsole_class; +static const struct class vtconsole_class = { + .name = "vtconsole", +}; static int do_bind_con_driver(const struct consw *csw, int first, int last, int deflt) @@ -4098,7 +4100,7 @@ static int do_register_con_driver(const struct consw *csw, int first, int last) goto err; con_driver->dev = - device_create_with_groups(vtconsole_class, NULL, + device_create_with_groups(&vtconsole_class, NULL, MKDEV(0, con_driver->node), con_driver, con_dev_groups, "vtcon%i", con_driver->node); @@ -4179,7 +4181,7 @@ static void con_driver_unregister_callback(struct work_struct *ignored) console_unlock(); vtconsole_deinit_device(con_driver); - device_destroy(vtconsole_class, MKDEV(0, con_driver->node)); + device_destroy(&vtconsole_class, MKDEV(0, con_driver->node)); console_lock(); @@ -4240,12 +4242,9 @@ static int __init vtconsole_class_init(void) { int i; - vtconsole_class = class_create("vtconsole"); - if (IS_ERR(vtconsole_class)) { - pr_warn("Unable to create vt console class; errno = %ld\n", - PTR_ERR(vtconsole_class)); - vtconsole_class = NULL; - } + i = class_register(&vtconsole_class); + if (i) + pr_warn("Unable to create vt console class; errno = %d\n", i); /* Add system drivers to sysfs */ for (i = 0; i < MAX_NR_CON_DRIVER; i++) { @@ -4253,7 +4252,7 @@ static int __init vtconsole_class_init(void) if (con->con && !con->dev) { con->dev = - device_create_with_groups(vtconsole_class, NULL, + device_create_with_groups(&vtconsole_class, NULL, MKDEV(0, con->node), con, con_dev_groups, "vtcon%i", con->node); |