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path: root/drivers/char/vt.c
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-rw-r--r--drivers/char/vt.c31
1 files changed, 24 insertions, 7 deletions
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index ec0c070bf15f..a398b6b6aa65 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -106,7 +106,8 @@
106#define MAX_NR_CON_DRIVER 16 106#define MAX_NR_CON_DRIVER 16
107 107
108#define CON_DRIVER_FLAG_MODULE 1 108#define CON_DRIVER_FLAG_MODULE 1
109#define CON_DRIVER_FLAG_INIT 2 109#define CON_DRIVER_FLAG_INIT 2
110#define CON_DRIVER_FLAG_ATTR 4
110 111
111struct con_driver { 112struct con_driver {
112 const struct consw *con; 113 const struct consw *con;
@@ -3070,22 +3071,37 @@ static struct class_device_attribute class_device_attrs[] = {
3070static int vtconsole_init_class_device(struct con_driver *con) 3071static int vtconsole_init_class_device(struct con_driver *con)
3071{ 3072{
3072 int i; 3073 int i;
3074 int error = 0;
3073 3075
3076 con->flag |= CON_DRIVER_FLAG_ATTR;
3074 class_set_devdata(con->class_dev, con); 3077 class_set_devdata(con->class_dev, con);
3075 for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) 3078 for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) {
3076 class_device_create_file(con->class_dev, 3079 error = class_device_create_file(con->class_dev,
3077 &class_device_attrs[i]); 3080 &class_device_attrs[i]);
3081 if (error)
3082 break;
3083 }
3078 3084
3079 return 0; 3085 if (error) {
3086 while (--i >= 0)
3087 class_device_remove_file(con->class_dev,
3088 &class_device_attrs[i]);
3089 con->flag &= ~CON_DRIVER_FLAG_ATTR;
3090 }
3091
3092 return error;
3080} 3093}
3081 3094
3082static void vtconsole_deinit_class_device(struct con_driver *con) 3095static void vtconsole_deinit_class_device(struct con_driver *con)
3083{ 3096{
3084 int i; 3097 int i;
3085 3098
3086 for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++) 3099 if (con->flag & CON_DRIVER_FLAG_ATTR) {
3087 class_device_remove_file(con->class_dev, 3100 for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
3088 &class_device_attrs[i]); 3101 class_device_remove_file(con->class_dev,
3102 &class_device_attrs[i]);
3103 con->flag &= ~CON_DRIVER_FLAG_ATTR;
3104 }
3089} 3105}
3090 3106
3091/** 3107/**
@@ -3184,6 +3200,7 @@ int register_con_driver(const struct consw *csw, int first, int last)
3184 } else { 3200 } else {
3185 vtconsole_init_class_device(con_driver); 3201 vtconsole_init_class_device(con_driver);
3186 } 3202 }
3203
3187err: 3204err:
3188 release_console_sem(); 3205 release_console_sem();
3189 module_put(owner); 3206 module_put(owner);