diff options
Diffstat (limited to 'ncr-key.c')
| -rw-r--r-- | ncr-key.c | 36 |
1 files changed, 28 insertions, 8 deletions
@@ -118,9 +118,7 @@ int ncr_key_init(struct list_sem_st* lst, void __user* arg) up(&lst->sem); desc = key->desc; - copy_to_user(arg, &desc, sizeof(desc)); - - return 0; + return copy_to_user(arg, &desc, sizeof(desc)); } @@ -128,8 +126,13 @@ int ncr_key_deinit(struct list_sem_st* lst, void __user* arg) { ncr_key_t desc; struct key_item_st * item, *tmp; + int ret; - copy_from_user( &desc, arg, sizeof(desc)); + ret = copy_from_user( &desc, arg, sizeof(desc)); + if (unlikely(ret)) { + err(); + return ret; + } down(&lst->sem); @@ -157,7 +160,11 @@ struct key_item_st* item = NULL; struct data_item_st* ditem = NULL; int ret; - copy_from_user( &data, arg, sizeof(data)); + ret = copy_from_user( &data, arg, sizeof(data)); + if (unlikely(ret)) { + err(); + return ret; + } item = ncr_key_item_get( key_lst, data.key); if (item == NULL) { @@ -221,7 +228,11 @@ struct key_item_st* item = NULL; struct data_item_st* ditem = NULL; int ret; - copy_from_user( &data, arg, sizeof(data)); + ret = copy_from_user( &data, arg, sizeof(data)); + if (unlikely(ret)) { + err(); + return ret; + } item = ncr_key_item_get( key_lst, data.key); if (item == NULL) { @@ -297,7 +308,11 @@ struct key_item_st* item = NULL; int ret; size_t size; - copy_from_user( &gen, arg, sizeof(gen)); + ret = copy_from_user( &gen, arg, sizeof(gen)); + if (unlikely(ret)) { + err(); + return ret; + } item = ncr_key_item_get( lst, gen.desc); if (item == NULL) { @@ -345,8 +360,13 @@ int ncr_key_info(struct list_sem_st* lst, void __user* arg) { struct ncr_key_info_st info; struct key_item_st* item = NULL; +int ret; - copy_from_user( &info, arg, sizeof(info)); + ret = copy_from_user( &info, arg, sizeof(info)); + if (unlikely(ret)) { + err(); + return ret; + } item = ncr_key_item_get( lst, info.key); if (item == NULL) { |