[PATCH] fix scsi_id segfault with udev-009

Scsi_id hasn't been changed to use the latest libsysfs changes. The
"directory" in the sysfs_class_device is now considered "private" and only
should be accessed using functions. Treating the structures as handles lets
us only load information when it's needed, reducing caching or stale
information and also helping performance.

Here's the problem.

static inline char *sysfs_get_attr(struct sysfs_class_device *dev,
                                    const char *attr)
{
        return sysfs_get_value_from_attributes(dev->directory->attributes,
                                               attr);
}

Please try this quick fix:

1 files changed, 8 insertions, 2 deletions

diff --git a/extras/scsi_id/scsi_id.h b/extras/scsi_id/scsi_id.h
index eb9498ab71..cb27e88a5f 100644
--- a/extras/scsi_id/scsi_id.h
+++ b/extras/scsi_id/scsi_id.h
@@ -42,8 +42,14 @@
 static inline char *sysfs_get_attr(struct sysfs_class_device *dev,
 				    const char *attr)
 {
-	return sysfs_get_value_from_attributes(dev->directory->attributes,
-					       attr);
+	struct dlist *attributes = NULL;
+
+	attributes = sysfs_get_classdev_attributes(dev);
+
+	if (attributes == NULL)
+		return NULL;
+
+	return sysfs_get_value_from_attributes(attributes, attr);
 }
 
 extern int scsi_get_serial (struct sysfs_class_device *scsi_dev,