Index: udev-175/extras/ata_id/ata_id.c
===================================================================
--- udev-175.orig/extras/ata_id/ata_id.c	2011-10-06 06:58:11.372582876 +0800
+++ udev-175/extras/ata_id/ata_id.c	2012-09-26 14:26:13.142085367 +0800
@@ -511,7 +511,7 @@
 		 * use and copy it into the hd_driveid struct for convenience
 		 */
 		disk_identify_fixup_string (identify,  10, 20);	/* serial */
-		disk_identify_fixup_string (identify,  23,  6);	/* fwrev */
+		disk_identify_fixup_string (identify,  23,  8);	/* fwrev */
 		disk_identify_fixup_string (identify,  27, 40);	/* model */
 		disk_identify_fixup_uint16 (identify,	0);	/* configuration */
 		disk_identify_fixup_uint16 (identify,  75);	/* queue depth */