diff options
Diffstat (limited to 'drivers/char/vt.c')
-rw-r--r-- | drivers/char/vt.c | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/char/vt.c b/drivers/char/vt.c index ec0c070bf15..8e4413f6fba 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -106,7 +106,8 @@ #define MAX_NR_CON_DRIVER 16 #define CON_DRIVER_FLAG_MODULE 1 -#define CON_DRIVER_FLAG_INIT 2 +#define CON_DRIVER_FLAG_INIT 2 +#define CON_DRIVER_FLAG_ATTR 4 struct con_driver { const struct consw *con; @@ -138,14 +139,6 @@ const struct consw *conswitchp; extern void vcs_make_sysfs(struct tty_struct *tty); extern void vcs_remove_sysfs(struct tty_struct *tty); -extern void console_map_init(void); -#ifdef CONFIG_PROM_CONSOLE -extern void prom_con_init(void); -#endif -#ifdef CONFIG_MDA_CONSOLE -extern int mda_console_init(void); -#endif - struct vc vc_cons [MAX_NR_CONSOLES]; #ifndef VT_SINGLE_DRIVER @@ -3070,22 +3063,37 @@ static struct class_device_attribute class_device_attrs[] = { static int vtconsole_init_class_device(struct con_driver *con) { int i; + int error = 0; + con->flag |= CON_DRIVER_FLAG_ATTR; class_set_devdata(con->class_dev, con); - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) - class_device_create_file(con->class_dev, + for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) { + error = class_device_create_file(con->class_dev, + &class_device_attrs[i]); + if (error) + break; + } + + if (error) { + while (--i >= 0) + class_device_remove_file(con->class_dev, &class_device_attrs[i]); + con->flag &= ~CON_DRIVER_FLAG_ATTR; + } - return 0; + return error; } static void vtconsole_deinit_class_device(struct con_driver *con) { int i; - for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) - class_device_remove_file(con->class_dev, - &class_device_attrs[i]); + if (con->flag & CON_DRIVER_FLAG_ATTR) { + for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) + class_device_remove_file(con->class_dev, + &class_device_attrs[i]); + con->flag &= ~CON_DRIVER_FLAG_ATTR; + } } /** @@ -3184,6 +3192,7 @@ int register_con_driver(const struct consw *csw, int first, int last) } else { vtconsole_init_class_device(con_driver); } + err: release_console_sem(); module_put(owner); |