diff options
Diffstat (limited to 'lib/sysfs_bus.c')
| -rw-r--r-- | lib/sysfs_bus.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sysfs_bus.c b/lib/sysfs_bus.c index 615407e..0a7b171 100644 --- a/lib/sysfs_bus.c +++ b/lib/sysfs_bus.c @@ -335,6 +335,7 @@ struct dlist *sysfs_get_bus_attributes(struct sysfs_bus *bus) { if (bus == NULL) return NULL; + if (bus->directory == NULL) { bus->directory = sysfs_open_directory(bus->path); if (bus->directory == NULL) @@ -344,6 +345,10 @@ struct dlist *sysfs_get_bus_attributes(struct sysfs_bus *bus) if ((sysfs_read_dir_attributes(bus->directory)) != 0) return NULL; } else { + if ((sysfs_path_is_dir(bus->path)) != 0) { + dprintf("Bus at %s no longer exists\n", bus->path); + return NULL; + } if ((sysfs_refresh_attributes (bus->directory->attributes)) != 0) { dprintf("Error refreshing bus attributes\n"); |