diff options
Diffstat (limited to 'udevdb.c')
| -rw-r--r-- | udevdb.c | 16 |
1 files changed, 15 insertions, 1 deletions
@@ -42,13 +42,16 @@ #include "tdb/tdb.h" static TDB_CONTEXT *udevdb; - +sig_atomic_t gotalarm; int udevdb_add_dev(const char *path, const struct udevice *dev) { TDB_DATA key, data; char keystr[SYSFS_PATH_MAX]; + if (udevdb == NULL) + return -1; + if ((path == NULL) || (dev == NULL)) return -ENODEV; @@ -68,6 +71,9 @@ int udevdb_get_dev(const char *path, struct udevice *dev) { TDB_DATA key, data; + if (udevdb == NULL) + return -1; + if (path == NULL) return -ENODEV; @@ -88,6 +94,9 @@ int udevdb_delete_dev(const char *path) TDB_DATA key; char keystr[SYSFS_PATH_MAX]; + if (udevdb == NULL) + return -1; + if (path == NULL) return -EINVAL; @@ -121,6 +130,8 @@ int udevdb_init(int init_flag) if (init_flag != UDEVDB_DEFAULT && init_flag != UDEVDB_INTERNAL) return -EINVAL; + tdb_set_lock_alarm(&gotalarm); + udevdb = tdb_open(udev_db_filename, 0, init_flag, O_RDWR | O_CREAT, 0644); if (udevdb == NULL) { if (init_flag == UDEVDB_INTERNAL) @@ -160,6 +171,9 @@ int udevdb_call_foreach(int (*user_record_handler) (char *path, struct udevice * { int retval = 0; + if (udevdb == NULL) + return -1; + if (user_record_handler == NULL) { dbg("invalid user record handling function"); return -EINVAL; |