PATCH: minor cleanup patch for udev-095/scsi_id

[Gurudas Pai <gurudas.pai@xxxxxxxxxx>]

Hi ,

With udev-095 , when scsi_id fails for "scsi_id -g -u -s /block/ram1"
it leaves behind a temp nod under /dev, following patch adds a unlink 
for this kind of  failure. Please let me know if this makes sense.

Thanks,
-Guru

--- udev-095.orig/extras/scsi_id/scsi_id.c	2010-02-04 00:30:19.000000000 -0800
+++ udev-095/extras/scsi_id/scsi_id.c	2010-02-04 00:30:39.000000000 -0800
@@ -674,6 +674,8 @@ static int scsi_id(const char *devpath, 
 		dev_scsi = sysfs_device_get_parent_with_subsystem(dev, "scsi");
 		if (dev_scsi == NULL) {
 			err("unable to access parent device of '%s'", devpath);
+			if (!dev_specified)
+				unlink(maj_min_dev);				
 			return 1;
 		}
 		set_sysfs_values(dev_scsi);