diff options
| author | Ricardo B. Marliere <ricardo@marliere.net> | 2024-03-05 16:26:26 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-03-25 12:13:44 +0300 |
| commit | 8d93d0674bb1b3770d96e585248f0d5856bf0f64 (patch) | |
| tree | f3c87d4999edb5c387a9fe642f28f3d917a6e382 /drivers/media/rc | |
| parent | 888eefd91cbfe143e2f57f4463832861950457a0 (diff) | |
| download | linux-8d93d0674bb1b3770d96e585248f0d5856bf0f64.tar.xz | |
media: lirc_dev: Make lirc_class constant
Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the lirc_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media/rc')
| -rw-r--r-- | drivers/media/rc/lirc_dev.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index caad59f76793..52aea4167718 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -27,7 +27,9 @@ static dev_t lirc_base_dev; static DEFINE_IDA(lirc_ida); /* Only used for sysfs but defined to void otherwise */ -static struct class *lirc_class; +static const struct class lirc_class = { + .name = "lirc", +}; /** * lirc_raw_event() - Send raw IR data to lirc to be relayed to userspace @@ -724,7 +726,7 @@ int lirc_register(struct rc_dev *dev) return minor; device_initialize(&dev->lirc_dev); - dev->lirc_dev.class = lirc_class; + dev->lirc_dev.class = &lirc_class; dev->lirc_dev.parent = &dev->dev; dev->lirc_dev.release = lirc_release_device; dev->lirc_dev.devt = MKDEV(MAJOR(lirc_base_dev), minor); @@ -789,15 +791,13 @@ int __init lirc_dev_init(void) { int retval; - lirc_class = class_create("lirc"); - if (IS_ERR(lirc_class)) { - pr_err("class_create failed\n"); - return PTR_ERR(lirc_class); - } + retval = class_register(&lirc_class); + if (retval) + return retval; retval = alloc_chrdev_region(&lirc_base_dev, 0, RC_DEV_MAX, "lirc"); if (retval) { - class_destroy(lirc_class); + class_unregister(&lirc_class); pr_err("alloc_chrdev_region failed\n"); return retval; } @@ -810,7 +810,7 @@ int __init lirc_dev_init(void) void __exit lirc_dev_exit(void) { - class_destroy(lirc_class); + class_unregister(&lirc_class); unregister_chrdev_region(lirc_base_dev, RC_DEV_MAX); } |